Changing indications for penetrating keratoplasty

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Abstract
The indications for penetrating keratoplasty have changed over the past several years. One hundred and eighty cases of penetrating keratoplasty performed in the Department of Ophthalmology, Næstved Centralsygehus, Denmark, from January 1984 to December 1993, were analysed. Overall pseudophakic bullous keratopathy was the most common indication for penetrating keratoplasty (28.3%). This was followed by keratitis (13.9%), Fuchs' dystrophy (13.9%), regraft (11.1%), aphakic bullous keratopathy (10.0%) and keratoconus (6.7%). Pseudophakic bullous keratopathy was the most common indication for penetrating keratoplasty in 1989 and in each year from 1991 to 1993. Before 1989 the most common indications were keratitis (18.0%) and aphakic bullous keratopathy (14.8%). The emergence of pseudophakic bullous keratopathy, as the most common indication for penetrating keratoplasty, correlates well with the dramatic increase in the number of cataract extractions with intraocular lens implantation performed since the early 1980s. Especially semiflexible, closed‐loop anterior chamber lenses used in our department in the early years of the period, have been the cause of subsequent corneal edema.

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