Transplantation of preserved human amniotic membrane for surface reconstruction in severely damaged rabbit corneas.

Abstract:

:After n-heptanol removal of the total corneal epithelium and a limbal lamellar keratectomy, 23 rabbit eyes developed features of limbal stem cell deficiency including conjunctival epithelial ingrowth, vascularization and chronic inflammation. One month later, 10 control eyes received a total keratectomy, and 13 experimental eyes received additional transplantation of glycerin-preserved human amniotic membrane. In 3 months of follow-up, all control corneas were revascularized to the center with granuloma and retained a conjunctival epithelial phenotype. In contrast, five corneas in the experimental group became clear with either minimal or no vascularization; the rest had either mid peripheral (n = 5) or total (n = 3) vascularization and cloudier stroma. The success of corneal surface reconstruction correlated with the return of a cornea-like epithelial phenotype and the preservation of amniotic membrane, whereas the failure maintained a conjunctival epithelial phenotype and the amniotic membrane was either partially degraded or covered by host fibrovascular stroma. These results suggest that measures taken to facilitate epithelialization without allowing host fibrovascular ingrowth onto the amniotic membrane might prove this procedure clinically useful for ocular surface reconstruction.

journal_name

Cornea

journal_title

Cornea

authors

Kim JC,Tseng SC

subject

Has Abstract

pub_date

1995-09-01 00:00:00

pages

473-84

issue

5

eissn

0277-3740

issn

1536-4798

journal_volume

14

pub_type

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