<?xml version="1.0" encoding="US-ASCII" ?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 5.9b -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: https://www.novaworks.com -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x00000000 -->
    <!-- Field: Doc-Info; Name: Misc; Value: 96Mps7xRiXgen8uDanwsWaSJSbP9z5Z86ekhvWB1bWlqPyYkzEHpUiaAF0RWoTgL -->
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:dei="http://xbrl.sec.gov/dei/2021" xmlns:us-gaap="http://fasb.org/us-gaap/2021-01-31" xmlns:srt="http://fasb.org/srt/2021-01-31" xmlns:srt-types="http://fasb.org/srt-types/2021-01-31" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" xmlns:HROW="http://harrowinc.com/20210630" elementFormDefault="qualified" targetNamespace="http://harrowinc.com/20210630">
    <annotation>
      <appinfo>
	<link:roleType roleURI="http://harrowinc.com/role/Cover" id="Cover">
	  <link:definition>00000001 - Document - Cover</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/BalanceSheets" id="BalanceSheets">
	  <link:definition>00000002 - Statement - Condensed Consolidated Balance Sheets</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/BalanceSheetsParenthetical" id="BalanceSheetsParenthetical">
	  <link:definition>00000003 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/StatementsOfOperations" id="StatementsOfOperations">
	  <link:definition>00000004 - Statement - Condensed Consolidated Statements of Operations (Unaudited)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/StatementsOfStockholdersEquity" id="StatementsOfStockholdersEquity">
	  <link:definition>00000005 - Statement - Condensed Consolidated Statements of Stockholders' Equity (Unaudited)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/StatementsOfCashFlows" id="StatementsOfCashFlows">
	  <link:definition>00000006 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/DescriptionOfBusinessAndBasisOfPresentation" id="DescriptionOfBusinessAndBasisOfPresentation">
	  <link:definition>00000007 - Disclosure - DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/SummaryOfSignificantAccountingPolicies" id="SummaryOfSignificantAccountingPolicies">
	  <link:definition>00000008 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/Revenues" id="Revenues">
	  <link:definition>00000009 - Disclosure - REVENUES</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/InvestmentInMeltPharmaceuticalsInc.RelatedPartyTransactions" id="InvestmentInMeltPharmaceuticalsInc.RelatedPartyTransactions">
	  <link:definition>00000010 - Disclosure - INVESTMENT IN MELT PHARMACEUTICALS, INC. RELATED PARTY TRANSACTIONS</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/InvestmentInSurfaceOphthalmicsInc.-RelatedPartyTransactions" id="InvestmentInSurfaceOphthalmicsInc.-RelatedPartyTransactions">
	  <link:definition>00000011 - Disclosure - INVESTMENT IN SURFACE OPHTHALMICS, INC. - RELATED PARTY TRANSACTIONS</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/RestrictedCash" id="RestrictedCash">
	  <link:definition>00000012 - Disclosure - RESTRICTED CASH</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/Inventories" id="Inventories">
	  <link:definition>00000013 - Disclosure - INVENTORIES</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/PrepaidExpensesAndOtherCurrentAssets" id="PrepaidExpensesAndOtherCurrentAssets">
	  <link:definition>00000014 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/PropertyPlantAndEquipment" id="PropertyPlantAndEquipment">
	  <link:definition>00000015 - Disclosure - PROPERTY, PLANT AND EQUIPMENT</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/IntangibleAssetsAndGoodwill" id="IntangibleAssetsAndGoodwill">
	  <link:definition>00000016 - Disclosure - INTANGIBLE ASSETS AND GOODWILL</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/AccountsPayableAndAccruedExpenses" id="AccountsPayableAndAccruedExpenses">
	  <link:definition>00000017 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED EXPENSES</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/Debt" id="Debt">
	  <link:definition>00000018 - Disclosure - DEBT</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/Leases" id="Leases">
	  <link:definition>00000019 - Disclosure - LEASES</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/StockholdersEquityAndStock-basedCompensation" id="StockholdersEquityAndStock-basedCompensation">
	  <link:definition>00000020 - Disclosure - STOCKHOLDERS&#8217; EQUITY AND STOCK-BASED COMPENSATION</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/CommitmentsAndContingencies" id="CommitmentsAndContingencies">
	  <link:definition>00000021 - Disclosure - COMMITMENTS AND CONTINGENCIES</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/SegmentInformationAndConcentrations" id="SegmentInformationAndConcentrations">
	  <link:definition>00000022 - Disclosure - SEGMENT INFORMATION AND CONCENTRATIONS</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/SubsequentEvents" id="SubsequentEvents">
	  <link:definition>00000023 - Disclosure - SUBSEQUENT EVENTS</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/SummaryOfSignificantAccountingPoliciesPolicies" id="SummaryOfSignificantAccountingPoliciesPolicies">
	  <link:definition>00000024 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/SummaryOfSignificantAccountingPoliciesTables" id="SummaryOfSignificantAccountingPoliciesTables">
	  <link:definition>00000025 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/RevenuesTables" id="RevenuesTables">
	  <link:definition>00000026 - Disclosure - REVENUES (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/InvestmentInMeltPharmaceuticalsInc.RelatedPartyTransactionsTables" id="InvestmentInMeltPharmaceuticalsInc.RelatedPartyTransactionsTables">
	  <link:definition>00000027 - Disclosure - INVESTMENT IN MELT PHARMACEUTICALS, INC. RELATED PARTY TRANSACTIONS (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/InvestmentInSurfaceOphthalmicsInc.-RelatedPartyTransactionsTables" id="InvestmentInSurfaceOphthalmicsInc.-RelatedPartyTransactionsTables">
	  <link:definition>00000028 - Disclosure - INVESTMENT IN SURFACE OPHTHALMICS, INC. - RELATED PARTY TRANSACTIONS (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/InventoriesTables" id="InventoriesTables">
	  <link:definition>00000029 - Disclosure - INVENTORIES (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/PrepaidExpensesAndOtherCurrentAssetsTables" id="PrepaidExpensesAndOtherCurrentAssetsTables">
	  <link:definition>00000030 - Disclosure - PREPAID EXPENSES AND OTHER CURRENT ASSETS (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/PropertyPlantAndEquipmentTables" id="PropertyPlantAndEquipmentTables">
	  <link:definition>00000031 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/IntangibleAssetsAndGoodwillTables" id="IntangibleAssetsAndGoodwillTables">
	  <link:definition>00000032 - Disclosure - INTANGIBLE ASSETS AND GOODWILL (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/AccountsPayableAndAccruedExpensesTables" id="AccountsPayableAndAccruedExpensesTables">
	  <link:definition>00000033 - Disclosure - ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/DebtTables" id="DebtTables">
	  <link:definition>00000034 - Disclosure - DEBT (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/LeasesTables" id="LeasesTables">
	  <link:definition>00000035 - Disclosure - LEASES (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/StockholdersEquityAndStock-basedCompensationTables" id="StockholdersEquityAndStock-basedCompensationTables">
	  <link:definition>00000036 - Disclosure - STOCKHOLDERS&#8217; EQUITY AND STOCK-BASED COMPENSATION (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/SegmentInformationAndConcentrationsTables" id="SegmentInformationAndConcentrationsTables">
	  <link:definition>00000037 - Disclosure - SEGMENT INFORMATION AND CONCENTRATIONS (Tables)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/DescriptionOfBusinessAndBasisOfPresentationDetailsNarrative" id="DescriptionOfBusinessAndBasisOfPresentationDetailsNarrative">
	  <link:definition>00000038 - Disclosure - DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/SummaryOfSignificantAccountingPoliciesDetailsNarrative" id="SummaryOfSignificantAccountingPoliciesDetailsNarrative">
	  <link:definition>00000039 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfBasicAndDilutedEarningsPerCommonShareDetails" id="ScheduleOfBasicAndDilutedEarningsPerCommonShareDetails">
	  <link:definition>00000040 - Disclosure - SCHEDULE OF BASIC AND DILUTED EARNINGS PER COMMON SHARE (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfDisaggregatedRevenueDetails" id="ScheduleOfDisaggregatedRevenueDetails">
	  <link:definition>00000041 - Disclosure - SCHEDULE OF DISAGGREGATED REVENUE (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/RevenuesDetailsNarrative" id="RevenuesDetailsNarrative">
	  <link:definition>00000042 - Disclosure - REVENUES (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfCondensedIncomeStatementDetails" id="ScheduleOfCondensedIncomeStatementDetails">
	  <link:definition>00000043 - Disclosure - SCHEDULE OF CONDENSED INCOME STATEMENT (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfCondensedBalanceSheetDetails" id="ScheduleOfCondensedBalanceSheetDetails">
	  <link:definition>00000044 - Disclosure - SCHEDULE OF CONDENSED BALANCE SHEET (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/InvestmentInMeltPharmaceuticalsInc.RelatedPartyTransactionsDetailsNarrative" id="InvestmentInMeltPharmaceuticalsInc.RelatedPartyTransactionsDetailsNarrative">
	  <link:definition>00000045 - Disclosure - INVESTMENT IN MELT PHARMACEUTICALS, INC. RELATED PARTY TRANSACTIONS (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/SummaryOfCondensedIncomeStatementDetails" id="SummaryOfCondensedIncomeStatementDetails">
	  <link:definition>00000046 - Disclosure - SUMMARY OF CONDENSED INCOME STATEMENT (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/SummaryOfCondensedBalanceSheetDetails" id="SummaryOfCondensedBalanceSheetDetails">
	  <link:definition>00000047 - Disclosure - SUMMARY OF CONDENSED BALANCE SHEET (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/InvestmentInSurfaceOphthalmicsInc.-RelatedPartyTransactionsDetailsNarrative" id="InvestmentInSurfaceOphthalmicsInc.-RelatedPartyTransactionsDetailsNarrative">
	  <link:definition>00000048 - Disclosure - INVESTMENT IN SURFACE OPHTHALMICS, INC. - RELATED PARTY TRANSACTIONS (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/RestrictedCashDetailsNarrative" id="RestrictedCashDetailsNarrative">
	  <link:definition>00000049 - Disclosure - RESTRICTED CASH (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfInventoriesDetails" id="ScheduleOfInventoriesDetails">
	  <link:definition>00000050 - Disclosure - SCHEDULE OF INVENTORIES (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfPrepaidExpensesAndOtherCurrentAssetsDetails" id="ScheduleOfPrepaidExpensesAndOtherCurrentAssetsDetails">
	  <link:definition>00000051 - Disclosure - SCHEDULE OF PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfPropertyPlantAndEquipmentDetails" id="ScheduleOfPropertyPlantAndEquipmentDetails">
	  <link:definition>00000052 - Disclosure - SCHEDULE OF PROPERTY, PLANT AND EQUIPMENT (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/PropertyPlantAndEquipmentDetailsNarrative" id="PropertyPlantAndEquipmentDetailsNarrative">
	  <link:definition>00000053 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfIntangibleAssetsDetails" id="ScheduleOfIntangibleAssetsDetails">
	  <link:definition>00000054 - Disclosure - SCHEDULE OF INTANGIBLE ASSETS (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfAmortizationExpensesForIntangibleAssetsDetails" id="ScheduleOfAmortizationExpensesForIntangibleAssetsDetails">
	  <link:definition>00000055 - Disclosure - SCHEDULE OF AMORTIZATION EXPENSES FOR INTANGIBLE ASSETS (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfEstimatedFutureAmortizationExpenseDetails" id="ScheduleOfEstimatedFutureAmortizationExpenseDetails">
	  <link:definition>00000056 - Disclosure - SCHEDULE OF ESTIMATED FUTURE AMORTIZATION EXPENSE (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfAccountsPayableAndAccruedExpensesDetails" id="ScheduleOfAccountsPayableAndAccruedExpensesDetails">
	  <link:definition>00000057 - Disclosure - SCHEDULE OF ACCOUNTS PAYABLE AND ACCRUED EXPENSES (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/SummaryOfFutureMinimumPaymentsDetails" id="SummaryOfFutureMinimumPaymentsDetails">
	  <link:definition>00000058 - Disclosure - SUMMARY OF FUTURE MINIMUM PAYMENTS (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/DebtDetailsNarrative" id="DebtDetailsNarrative">
	  <link:definition>00000059 - Disclosure - DEBT (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfFutureLeasePaymentsUnderOperatingLeasesDetails" id="ScheduleOfFutureLeasePaymentsUnderOperatingLeasesDetails">
	  <link:definition>00000060 - Disclosure - SCHEDULE OF FUTURE LEASE PAYMENTS UNDER OPERATING LEASES (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfFutureLeasePaymentsUnderFinanceLeaseDetails" id="ScheduleOfFutureLeasePaymentsUnderFinanceLeaseDetails">
	  <link:definition>00000061 - Disclosure - SCHEDULE OF FUTURE LEASE PAYMENTS UNDER FINANCE LEASE (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/LeasesDetailsNarrative" id="LeasesDetailsNarrative">
	  <link:definition>00000062 - Disclosure - LEASES (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfStockOptionPlanActivityDetails" id="ScheduleOfStockOptionPlanActivityDetails">
	  <link:definition>00000063 - Disclosure - SCHEDULE OF STOCK OPTION PLAN ACTIVITY (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfFairValueAssumptionsDetails" id="ScheduleOfFairValueAssumptionsDetails">
	  <link:definition>00000064 - Disclosure - SCHEDULE OF FAIR VALUE ASSUMPTIONS (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfStockOptionOutstandingAndExercisableDetails" id="ScheduleOfStockOptionOutstandingAndExercisableDetails">
	  <link:definition>00000065 - Disclosure - SCHEDULE OF STOCK OPTION OUTSTANDING AND EXERCISABLE (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfRestrictedStockUnitsActivityDetails" id="ScheduleOfRestrictedStockUnitsActivityDetails">
	  <link:definition>00000066 - Disclosure - SCHEDULE OF RESTRICTED STOCK UNITS ACTIVITY (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfWarrantsActivityDetails" id="ScheduleOfWarrantsActivityDetails">
	  <link:definition>00000067 - Disclosure - SCHEDULE OF WARRANTS ACTIVITY (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfWarrantsOutstandingAndWarrantsExercisableDetails" id="ScheduleOfWarrantsOutstandingAndWarrantsExercisableDetails">
	  <link:definition>00000068 - Disclosure - SCHEDULE OF WARRANTS OUTSTANDING AND WARRANTS EXERCISABLE (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfStockBasedCompensationGrantedToEmployeesDirectorsConsultantsDetails" id="ScheduleOfStockBasedCompensationGrantedToEmployeesDirectorsConsultantsDetails">
	  <link:definition>00000069 - Disclosure - SCHEDULE OF STOCK BASED COMPENSATION GRANTED TO EMPLOYEES DIRECTORS CONSULTANTS (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/StockholdersEquityAndStock-basedCompensationDetailsNarrative" id="StockholdersEquityAndStock-basedCompensationDetailsNarrative">
	  <link:definition>00000070 - Disclosure - STOCKHOLDERS&#8217; EQUITY AND STOCK-BASED COMPENSATION (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/CommitmentsAndContingenciesDetailsNarrative" id="CommitmentsAndContingenciesDetailsNarrative">
	  <link:definition>00000071 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/ScheduleOfSegmentNetRevenuesSegmentOperatingExpensesAndSegmentContributionDetails" id="ScheduleOfSegmentNetRevenuesSegmentOperatingExpensesAndSegmentContributionDetails">
	  <link:definition>00000072 - Disclosure - SCHEDULE OF SEGMENT NET REVENUES, SEGMENT OPERATING EXPENSES AND SEGMENT CONTRIBUTION (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/SegmentInformationAndConcentrationsDetailsNarrative" id="SegmentInformationAndConcentrationsDetailsNarrative">
	  <link:definition>00000073 - Disclosure - SEGMENT INFORMATION AND CONCENTRATIONS (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://harrowinc.com/role/SubsequentEventsDetailsNarrative" id="SubsequentEventsDetailsNarrative">
	  <link:definition>00000074 - Disclosure - SUBSEQUENT EVENTS (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:linkbaseRef xlink:type="simple" xlink:href="hrow-20210630_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Presentation Links" />
	<link:linkbaseRef xlink:type="simple" xlink:href="hrow-20210630_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Label Links" />
	<link:linkbaseRef xlink:type="simple" xlink:href="hrow-20210630_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links" />
	<link:linkbaseRef xlink:type="simple" xlink:href="hrow-20210630_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links" />
      </appinfo>
    </annotation>
    <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
    <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
    <import namespace="http://xbrl.sec.gov/dei/2021" schemaLocation="https://xbrl.sec.gov/dei/2021/dei-2021.xsd" />
    <import namespace="http://fasb.org/us-gaap/2021-01-31" schemaLocation="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd" />
    <import namespace="http://fasb.org/us-types/2021-01-31" schemaLocation="https://xbrl.fasb.org/us-gaap/2021/elts/us-types-2021-01-31.xsd" />
    <import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd" />
    <import namespace="http://xbrl.sec.gov/country/2021" schemaLocation="https://xbrl.sec.gov/country/2021/country-2021.xsd" />
    <import namespace="http://xbrl.sec.gov/stpr/2021" schemaLocation="https://xbrl.sec.gov/stpr/2021/stpr-2021.xsd" />
    <import namespace="http://fasb.org/srt/2021-01-31" schemaLocation="https://xbrl.fasb.org/srt/2021/elts/srt-2021-01-31.xsd" />
    <import namespace="http://fasb.org/srt-types/2021-01-31" schemaLocation="https://xbrl.fasb.org/srt/2021/elts/srt-types-2021-01-31.xsd" />
    <element id="HROW_CommonStock0.001ParValuePerShareMember" name="CommonStock0.001ParValuePerShareMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_Sec8.625SeniorNotesDue2026Member" name="Sec8.625SeniorNotesDue2026Member" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SurfaceOphthalmicsMember" name="SurfaceOphthalmicsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_MeltPharmaceuticalsMember" name="MeltPharmaceuticalsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ProductSalesNetMember" name="ProductSalesNetMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OtherRevenuesMember" name="OtherRevenuesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EtonPharmaceuticalsMember" name="EtonPharmaceuticalsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TotalHarrowHealthIncStockholdersEquityMember" name="TotalHarrowHealthIncStockholdersEquityMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EtonPharmaceuticalsIncMember" name="EtonPharmaceuticalsIncMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_MeltPharmaceuticalsIncMember" name="MeltPharmaceuticalsIncMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SurfacePharmaceuticalsIncMember" name="SurfacePharmaceuticalsIncMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_CommissionsMember" name="CommissionsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ManagementServicesAgreementMember" name="ManagementServicesAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_LicensesMember" name="LicensesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NonCompetitionClauseMember" name="NonCompetitionClauseMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_StatePharmacyLicensesMember" name="StatePharmacyLicensesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TermLoanAndSecurityAgreementMember" name="TermLoanAndSecurityAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SWKFundingLLCMember" name="SWKFundingLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_BusinessLoanAgreementMember" name="BusinessLoanAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SanDiegoMember" name="SanDiegoMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_LedgewoodMember" name="LedgewoodMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AdditionalSquareFootageOfLeaseMember" name="AdditionalSquareFootageOfLeaseMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NashvilleMember" name="NashvilleMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SeriesBCumulativePreferredStockRedeemedMember" name="SeriesBCumulativePreferredStockRedeemedMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_MarkLBaumMember" name="MarkLBaumMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AndrewRBollMember" name="AndrewRBollMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TwoThousandAndSeventeenIncentiveStockandAwardsPlanMember" name="TwoThousandAndSeventeenIncentiveStockandAwardsPlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_StockOptionPlanOneMember" name="StockOptionPlanOneMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_StockOptionPlanMember" name="StockOptionPlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EmployeesAndConsultantMember" name="EmployeesAndConsultantMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OptionsEmployeesMember" name="OptionsEmployeesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeOneMember" name="RangeOneMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeTwoMember" name="RangeTwoMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeThreeMember" name="RangeThreeMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RangeFourMember" name="RangeFourMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EmployeesMember" name="EmployeesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_UnvestedRSUMember" name="UnvestedRSUMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_LenderWarrantsMember" name="LenderWarrantsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SubsidiaryStockOptionPlanMember" name="SubsidiaryStockOptionPlanMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SellingGeneralAndAdministrativeMember" name="SellingGeneralAndAdministrativeMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EmployeesResearchAndDevelopmentMember" name="EmployeesResearchAndDevelopmentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ConsultantsSellingGeneralAndAdministrativeMember" name="ConsultantsSellingGeneralAndAdministrativeMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RichardLLindstromMDMember" name="RichardLLindstromMDMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_KlarityLicenseAgreementMember" name="KlarityLicenseAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_InitialPaymentMember" name="InitialPaymentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_LicenseAgreementMember" name="LicenseAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SecondPaymentMember" name="SecondPaymentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_FinalPaymentMember" name="FinalPaymentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_InjectableAssetPurchaseAgreementMember" name="InjectableAssetPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_EyepointCommercialAllianceAgreementMember" name="EyepointCommercialAllianceAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SalesAndMarketingAgreementsMember" name="SalesAndMarketingAgreementsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AssetPurchaseLicenseAndRelatedAgreementsMember" name="AssetPurchaseLicenseAndRelatedAgreementsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_MayfieldPharmaceuticalsMember" name="MayfieldPharmaceuticalsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AssetPurchaseAgreementMember" name="AssetPurchaseAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_StoweLicenseAgreementMember" name="StoweLicenseAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ImprimisRxMember" name="ImprimisRxMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PharmaceuticalDrugDevelopmentMember" name="PharmaceuticalDrugDevelopmentMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AssetSalesAndImpairmentsNetMember" name="AssetSalesAndImpairmentsNetMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_TwoProductConcentrationRiskMember" name="TwoProductConcentrationRiskMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ThreeMainSuppliersMember" name="ThreeMainSuppliersMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SinteticaAgreementMember" name="SinteticaAgreementMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DueWithinThirtyDaysMember" name="DueWithinThirtyDaysMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_GainLossOnForgivenessOfDebt" name="GainLossOnForgivenessOfDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_StockIssuedDuringPeriodForExerciseOfWarrants" name="StockIssuedDuringPeriodForExerciseOfWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_StockIssuedDuringPeriodSharesForExerciseOfWarrants" name="StockIssuedDuringPeriodSharesForExerciseOfWarrants" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_IssuanceOfPreferredShares" name="IssuanceOfPreferredShares" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_StockIssuedOfPreferredSharesDuringPeriod" name="StockIssuedOfPreferredSharesDuringPeriod" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AmortizationOfIntangibleAsset" name="AmortizationOfIntangibleAsset" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_AmortizationOfOperatingLeaseRightofuseAssets" name="AmortizationOfOperatingLeaseRightofuseAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_GainLossOnInvestmentsOne" name="GainLossOnInvestmentsOne" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_GainLossOnInvestmentsTwo" name="GainLossOnInvestmentsTwo" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_GainLossOnInvestmentsThree" name="GainLossOnInvestmentsThree" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NetProceedsFromPaycheckProtectionLoan" name="NetProceedsFromPaycheckProtectionLoan" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PaymentOfTaxesForVestingOfRestrictedStockUnit" name="PaymentOfTaxesForVestingOfRestrictedStockUnit" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ProceedsFromSaleOfPreferredStockNetOfDiscountAndIssuanceCosts" name="ProceedsFromSaleOfPreferredStockNetOfDiscountAndIssuanceCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PaymentsForRedemptionOfPreferredStock" name="PaymentsForRedemptionOfPreferredStock" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ReconciliationOfCashCashEquivalentsAndRestricedCashAtEndOfPeriodAbstract" name="ReconciliationOfCashCashEquivalentsAndRestricedCashAtEndOfPeriodAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ReconciliationOfCashAndCashEquivalents" name="ReconciliationOfCashAndCashEquivalents" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ReconciliationRestrictedCash" name="ReconciliationRestrictedCash" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_CashCashEquivalentsAndRestrictedCashAtEndOfPeriod" name="CashCashEquivalentsAndRestrictedCashAtEndOfPeriod" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RightofuseAssetObtainedInExchangeForLeaseObligation" name="RightofuseAssetObtainedInExchangeForLeaseObligation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NetReductionInRightofuseAssetsAndLeaseLiabilitiesInConnectionWithLeaseModifications" name="NetReductionInRightofuseAssetsAndLeaseLiabilitiesInConnectionWithLeaseModifications" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DisclosureInvestmentInSurfaceOphthalmicsInc.RelatedPartyTransactionsAbstract" name="DisclosureInvestmentInSurfaceOphthalmicsInc.RelatedPartyTransactionsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_InvestmentsAndAgreementsRelatedPartyTransactionsTextBlock" name="InvestmentsAndAgreementsRelatedPartyTransactionsTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DisclosureRestrictedCashAbstract" name="DisclosureRestrictedCashAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RestrictedCashTextBlock" name="RestrictedCashTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RisksUncertaintiesAndLiquidityPolicyTextBlock" name="RisksUncertaintiesAndLiquidityPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NoncontrollingInterestPolicyTextBlock" name="NoncontrollingInterestPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_InvestmentOnePolicyTextBlock" name="InvestmentOnePolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_InvestmentTwoPolicyTextBlock" name="InvestmentTwoPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ScheduleOfCondensedIncomeStatementOneTableTextBlock" name="ScheduleOfCondensedIncomeStatementOneTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ScheduleOfCondensedBalanceSheetOneTableTextBlock" name="ScheduleOfCondensedBalanceSheetOneTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ScheduleOfPrepaidExpensesAndOtherCurrentAssetsTableTextBlock" name="ScheduleOfPrepaidExpensesAndOtherCurrentAssetsTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ScheduleofWarrantsOutstandingAndExercisableTableTextBlock" name="ScheduleofWarrantsOutstandingAndExercisableTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ConsolidationBasisDescription" name="ConsolidationBasisDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_UnvestedRestrictedStockUnits" name="UnvestedRestrictedStockUnits" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_VestedRestrictedStockUnits" name="VestedRestrictedStockUnits" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NetIncomeLoss1" name="NetIncomeLoss1" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DisclosureInvestmentInSurfaceOphthalmicsIncRelatedPartyTransactionsAbstract" name="DisclosureInvestmentInSurfaceOphthalmicsIncRelatedPartyTransactionsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_PrepaidExpenseAndOtherAssetsCurrent1" name="PrepaidExpenseAndOtherAssetsCurrent1" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SoftwareCostsInDevelopmentGross" name="SoftwareCostsInDevelopmentGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_FiniteLivedIntangibleAssetsImpairment" name="FiniteLivedIntangibleAssetsImpairment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NotesPayableCurrent1" name="NotesPayableCurrent1" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_LongTermNotesPayable1" name="LongTermNotesPayable1" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DebtInstrumentAdditionalPrincipalAmount" name="DebtInstrumentAdditionalPrincipalAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DebtIssuanceExpenses" name="DebtIssuanceExpenses" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_LeaseExpirationDateDescription" name="LeaseExpirationDateDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_OperatingLeaseWeightedAverageIncrementalBorrowingRate" name="OperatingLeaseWeightedAverageIncrementalBorrowingRate" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_FinancingLeaseWeightedAverageIncrementalBorrowingRate" name="FinancingLeaseWeightedAverageIncrementalBorrowingRate" nillable="true" xbrli:periodType="instant" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsEquityInstrumentsOutstandingWeightedAverageExercisePrice1" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsEquityInstrumentsOutstandingWeightedAverageExercisePrice1" nillable="true" xbrli:periodType="instant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsEquityInstrumentsOutstandingAndExercisableWeightedAverageExercisePriceGranted" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsEquityInstrumentsOutstandingAndExercisableWeightedAverageExercisePriceGranted" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingAndExercisableNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingAndExercisableNumber" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsEquityInstrumentsOutstandingAndExercisableWeightedAverageExercisePrice1" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionsEquityInstrumentsOutstandingAndExercisableWeightedAverageExercisePrice1" nillable="true" xbrli:periodType="instant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionsEquityInstrumentOutstandingWeightedAverageRemainingContractualTerm1" name="SharebasedCompensationArrangementBySharebasedPaymentAwardNonOptionsEquityInstrumentOutstandingWeightedAverageRemainingContractualTerm1" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_WarrantsIssuanceDate" name="WarrantsIssuanceDate" nillable="true" xbrli:periodType="duration" type="xbrli:dateItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_WarrantsAndRightsOutstandingMaturityDates" name="WarrantsAndRightsOutstandingMaturityDates" nillable="true" xbrli:periodType="duration" type="xbrli:dateItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_ClosingPriceOfCommonStockPricePerShare" name="ClosingPriceOfCommonStockPricePerShare" nillable="true" xbrli:periodType="instant" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_RoyaltyPaymentDescription" name="RoyaltyPaymentDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NetSalesRevenue" name="NetSalesRevenue" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_MilestonePaymentsOnPayables" name="MilestonePaymentsOnPayables" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_MilestonePaymentInCash" name="MilestonePaymentInCash" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_CommissionPaymentsPercentage" name="CommissionPaymentsPercentage" nillable="true" xbrli:periodType="duration" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_DescriptionOfAcquiredProduct" name="DescriptionOfAcquiredProduct" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SharesReturned" name="SharesReturned" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SharesReacquired" name="SharesReacquired" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_SegmentContribution" name="SegmentContribution" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_NumberOfOperatingSegmentsDescription" name="NumberOfOperatingSegmentsDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="HROW_IssuanceOfCommonStockForVestingOfRestrictedStockUnits" name="IssuanceOfCommonStockForVestingOfRestrictedStockUnits" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
</schema>
