Choroidal osteoma. Treatment of associated subretinal neovascular membranes.

Treatment of subretinal neovascular membranes associated with choroidal osteomas is described. Early recognition of the membranes, aided by Amsler grid self-assessment, allowed initiation of photocoagulation treatment while the lesions were still extrafoveal. In one patient, initial treatment was performed with the argon green laser and subsequent treatments were applied with the krypton red laser. In two other patients, argon-laser photocoagulation alone was used to destroy subretinal neovascular membranes. Post-treatment evaluations in one patient demonstrated persistence of recurrence of neovascular tissue and allowed for prompt retreatment. Follow-up evaluations have shown that treatment resulted in persistent destruction of the subretinal neovascular membrane in two patients, with stabilization of vision at 20/25- and 20/100, respectively. In one patient, vision has been stable at 20/50 for 6 months; however, a recurrent subretinal neovascular membrane developed, encroaching through the fovea with resultant visual loss of 20/60.