Atrophic creep of the retinal pigment epithelium after focal macular photocoagulation.
To determine if enlargement of laser scars occurs in nonmyopic individuals, the authors retrospectively reviewed 126 consecutive patients with age-related macular degeneration who had been successfully treated with focal macular laser photocoagulation for subretinal neovascularization. Of the 174 laser scars in the study, 122 (70%) increased in size from 50 to 1016 microns (mean, 290 microns) as determined photographically on serial examination ranging from 2 to 81 months. There was no statistically significant difference in the number of scars which increased in size among the three laser wavelengths used. Four (3%) patients lost vision as a result of the scar extending into the fovea. Enlargement of retinal pigment epithelial (RPE) atrophy after focal macular laser photocoagulation may cause significant, delayed visual loss after successful treatment of subretinal neovascularization.
Morgan
C M
CM
Vitreoretinal Service, W.K. Kellogg Eye Center, University of Michigan Medical Center, Ann Arbor.
Schatz
H
H
D000368:Aged; D000369:Aged, 80 and over; D001284:Atrophy; D002921:Cicatrix / Q000473:pathology; D005260:Female; D005654:Fundus Oculi; D006801:Humans; D008028:Light Coagulation; D008266:Macula Lutea / Q000601:surgery*; D008268:Macular Degeneration / Q000601:surgery; D008297:Male; D008875:Middle Aged; D010857:Pigment Epithelium of Eye / Q000473:pathology*; D011183:Postoperative Complications; D012164:Retinal Diseases / Q000473:pathology