otic ▁cells ▁present ▁during ▁ins em ination . ▁ ▁A ▁ 2 0 1 8 ▁study ▁done ▁in ▁France ▁( with ▁the ▁support ▁of ▁multiple ▁individuals ▁and ▁ag encies ▁including : ▁the ▁Ins itut ▁de ▁la ▁V ision ▁in ▁Paris ▁and ▁the ▁Ret ina ▁France ▁Association ) ▁used ▁r ats ▁and ▁the ▁MAC S ▁method ▁to ▁show ▁that ▁phot ore cept ors ▁( cell s ▁in ▁the ▁ret ina ▁which ▁respond ▁to ▁light ) ▁may ▁be ▁trans pl anted ▁to ▁c ure ▁blind ness . ▁In ▁this ▁process , ▁the ▁micro be ads ▁were ▁attached ▁to ▁the ▁CD 7 3 ▁en zym e ▁to ▁assist ▁in ▁the ▁separation ▁of ▁PR s ▁( ph ot ore cept ors ) ▁from ▁ret inal ▁org ano ids . ▁When ▁a ▁CD 7 3 + ▁ant igen ▁expressed ▁itself ▁with ▁R CV R N + ▁cells ▁( cal ci um - binding ▁prote ins ▁in ▁the ▁eye ), ▁it ▁showed ▁research ers ▁that ▁this ▁combination ▁of ▁CD 7 3 + ▁and ▁R CV R N + ▁could ▁be ▁used ▁with ▁post - mit otic ▁PR ▁prec urs ors ▁for ▁repair . ▁Although ▁the ▁study ▁could ▁not ▁verify ▁success ▁in ▁humans , ▁they ▁have ▁the ▁foundation ▁for ▁further ▁research ▁based ▁on ▁the ▁success ▁of ▁pair ing ▁non - dam aged ▁phot ore cept ors ▁with ▁a ▁CD 7 3 ▁ant igen ▁and ▁the ▁trans plant ation ▁in ▁r ats . ▁This ▁success ▁in ▁cell ▁separation ▁and ▁pair ing ▁through ▁trans plant ation ▁shows ▁promise ▁for ▁a ▁potential ▁c