a correlative microscopic analysis of factory-prepared epikeratoplasty lenticules , corneas stored in mccarey-kaufman medium for two to four days , and fresh human corneas disclosed ultrastructural abnormalities in bowman 's membrane and in the corneal stroma of the lyophilized lenticules that were not present in the control corneas .
C0229127
bowman 's membrane
C0010031
corneas