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Cornea:
Clinical Sciences

Three Decades of Corneal Transplantation: Indications and Patient Characteristics

Maeno, Aya M.D.; Naor, Joel M.D.; Lee, Hung Ming M.B.B.S., F.R.C.S.(E); Hunter, William S. M.D., F.R.C.S.C.; Rootman, David S. M.D., F.R.C.S.C

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Abstract

Purpose. To review the indications and patient characteristics for penetrating keratoplasty (PKP).

Methods. Retrospective review of records at the Pathology Service, Department of Ophthalmology, University of Toronto from 1964 to 1997.

Results. The 6,222 records were reviewed. The leading indications for PKP were regraft, keratoconus (KC), pseudophakic bullous keratopathy (PBK), Fuchs' dystrophy, viral infections, and trauma, in that order. During the second half of the 1980s, PBK replaced KC as the leading indication for transplantation. The average age of patients increased from 49 (±19) years during the second half of the 1960s to 63 (±20) years at the first half of the 1990s. Gender differences (M/F ratio) were significant for KC, viral keratopathy, trauma, PBK, aphakic bullous keratopathy (ABK), edema of unspecified etiology, interstitial keratitis, rheumatoid arthritis, and Fuchs' dystrophy. Diagnostic category differences between all patients for PKPs and regrafts were significant for autoimmune keratolysis, congenital opacities, PBK, ABK, edema of unspecified etiology, scarring, Fuchs' dystrophy, and KC.

Conclusion. Indications are in accordance with the literature with the exception of regraft, which was higher. An increase in the average age of patients corresponded with the PBK epidemic. The high male-to-female ratio among patients with KC was different from that previously reported for the prevalence of this condition. Sex distribution among patients with PBK and ABK showed a female predominance. Differences in the underlying disease distributions between regrafted patients and the rest of the series coincide with prognostic classifications for PKP.

© 2000 Lippincott Williams & Wilkins, Inc.

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