Wk. Chan et al., CORNEAL SCARRING AFTER PHOTOREFRACTIVE KERATECTOMY IN A PENETRATING KERATOPLASTY, American journal of ophthalmology, 121(5), 1996, pp. 570-571
PURPOSE: To report severe scarring in a corneal graft after excimer la
ser photorefractive keratectomy. METHODS: A 35-year old man underwent
photorefractive keratectomy twice for severe compound myopic astigmati
sm and anisometropia after penetrating keratoplasty. RESULTS: 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. CONCLUSION: There may be an increased
risk of severe corneal stromal scarring from photorefractive keratecto
my in eyes that have had previous penetrating keratoplasty.