Atypical parafoveal telangiectasis with subsequent anterior and posterior segment neovascularization.

Bilateral parafoveal telangiectasis typically includes the presence of fluorescein staining of outer retinal capillaries, no macular ischemia, right-angled venules, and migration of pigment along these venules. In the bilateral form, atypical parafoveal telangiectasis with macular ischemia but without right-angled venules or migration of pigment along these venules has been reported in only five patients previously. An atypical case is presented of bilateral parafoveal telangiectasis complicated, not only by areas of macular nonperfusion, but also by peripheral ischemia with subsequent anterior and posterior segment neovascularization in the absence of any systemic abnormalities. As in previously reported cases, this patient had no evidence of right-angled venules or pigment migration. Pan-retinal photocoagulation resolved the rubeosis and caused regression of the retinal neovascularization.