Corneal scarring after photorefractive keratectomy in a penetrating keratoplasty.

Chan, W K; Hunt, K E; Glasgow, B J; Mondino, B J · Am J Ophthalmol · 1996

case_report · Level V

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Abstract

To report severe scarring in a corneal graft after excimer laser photorefractive keratectomy. A 35-year-old man underwent photorefractive keratectomy twice for severe compound myopic astigmatism and anisometropia after penetrating keratoplasty. Corneal opacity corresponded to areas of irregular epithelial thickness, focal absence of the basement membrane, loss of Bowman's layer, and stromal scarring in the ablation zone. There may be an increased risk of severe corneal stromal scarring from photorefractive keratectomy in eyes that have had previous penetrating keratoplasty.

Medical subject headings