Endothelial cell loss and graft survival after penetrating keratoplasty for laser iridotomy-induced bullous keratopathy

Japanese Journal of Ophthalmology
Naoki OkumuraShigeru Kinoshita

Abstract

To assess corneal endothelial cell loss after penetrating keratoplasty (PK) treatment for laser iridotomy (LI)-induced bullous keratopathy (BK). A retrospective study conducted on consecutive patients who underwent PK between March 2000 and December 2011. Patients who had undergone more than 24 months of follow-up were included. Patients who underwent PK were subcategorized into two groups based on their diagnosis of BK prior to PK; PK was performed to treat either LI-BK or non LI-BK. The cell density of the central corneal endothelium and the graft survival were evaluated during follow-up. Corneal endothelial cell density decreased in a similar fashion in both the LI-BK and non LI-BK patients, though the cell density decreased significantly faster in the LI-BK group than in the non LI-BK group throughout the 108 months of the study (p = 0.026). The mean cell loss at 36 months for the LI-BK group was 57.7% vs. 63.2% for the non LI-BK, 76.9% vs. 70.1% at 72 months, and 85.6% vs. 72.0% at 108 months. No eye among 21 eyes in the LI-BK group (0%) had failed grafts, whereas 4 of 25 eyes in the non LI-BK group (16.0%) had failed grafts at 60 months (p = 0.114). The outcome of PK for BK secondary to LI was no worse than the outcome of...Continue Reading

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