Ocular manifestations of various systemic diseases.

Diode laser therapy for retinopathy of prematurity appears superior to cryotherapy, because cryotherapy induces high myopia and macular coloboma-like changes. Plaque radiotherapy is highly effective in inducing regression of isolated uveal metastasis whether used as a primary therapy or when other modalities have failed. The nevus sebaceous syndrome is characterized by a yellowish discoloration of the posterior pole from intrascleral deposits of cartilage. Ultrasonic evidence of optic disc drusen helps in the diagnosis of Alagille syndrome in infants with intrahepatic cholestasis.