▁made ▁a ▁suggestion ▁in ▁ 1 8 6 7 ▁that ▁using ▁human ▁t issue ▁rather ▁than ▁animal ▁t issue ▁for ▁trans plant ation ▁would ▁be ▁more ▁effective ▁however , ▁it ▁would ▁not ▁be ▁until ▁ 1 9 0 5 ▁for ▁the ▁first ▁successful ▁human ▁cor ne al ▁trans plant ▁by ▁MD , ▁Edu ard ▁Z irm . ▁ ▁Since ▁ 1 9 0 5 , ▁various ▁techniques ▁and ▁procedures ▁have ▁been ▁developed ▁to ▁increase ▁the ▁effect ▁of ▁the ▁trans plant ation ▁and ▁success ▁rate . ▁Trad itionally , ▁the ▁most ▁common ▁procedure ▁for ▁cor ne al ▁trans plant ation ▁was ▁pen etr ating ▁ker at op last y ▁where by ▁an ▁entire ▁cor ne al ▁button ▁is ▁replaced . ▁Rec ently ▁however , ▁procedures ▁such ▁as ▁anterior ▁and ▁posterior ▁l am ell ar ▁techniques ▁where ▁only ▁dise ased ▁or ▁dam aged ▁layers ▁of ▁the ▁cor nea ▁are ▁select ively ▁replaced ▁have ▁become ▁increasing ly ▁popular . ▁ ▁Pro cedure ▁ ▁After ▁the ▁death ▁of ▁the ▁don or , ▁the ▁cor nea ▁must ▁be ▁retrieved ▁within ▁a ▁few ▁hours ▁and ▁will ▁be ▁screen ed ▁for ▁dise ases ▁and ▁ass essed ▁for ▁its ▁vi ability ▁to ▁be ▁used ▁for ▁a ▁cor ne al ▁trans plant ation ▁by ▁assess ing ▁its ▁health . ▁If ▁passed , ▁the ▁cor nea ▁will ▁be ▁stored ▁in ▁a ▁nut ri ent ▁solution ▁at ▁an ▁eye ▁bank ▁until ▁needed ▁for ▁an ▁operation . ▁In ▁most ▁cases , ▁the ▁cor ne al ▁button ▁is ▁removed ▁from ▁the ▁don or ▁cor nea ▁prior