A comparative study of argon and krypton laser. Photocoagulation in the treatment of presumed ocular histoplasmosis syndrome.

Ninety eyes from 88 patients with active macular subretinal neovascular membranes of presumed ocular histoplasmosis were treated with photocoagulation: 45 eyes with blue-green argon laser and 45 with red krypton laser. Final visual results are compared between these two series and natural course of the disease. The krypton laser photocoagulated eyes obtained better final visual results when compared with both the argon laser treated series and natural course.