Photocoagulation-induced lens opacity. Lens opacities secondary to argon laser photocoagulation were seen in six eyes of four patients undergoing treatment for subretinal neovascular membrane and diabetic retinopathy. Laser-induced lens opacities were multiple, grayish-white, and localized at the junction of the nucleus and anterior cortex of the lens. These lens opacities were stable and nonprogressive. Laser-induced lens opacities are a potential complication of photocoagulation treatment in patients with nuclear sclerosis.