Abstract
Familial exudative vitreoretinopathy (FEVR) is an inherited disease occurring due to defective retinal angiogenesis. FEVR patients have an avascular peripheral retina which, depending on the degree of ischemia, causes the secondary complications of the disease (retinal neovascularization, exudation, hemorrhage, and retinal detachment) Mutations in the NDP, FZD4, LRP5, TSPAN12 and ZNF08 genes have been shown to contribute to FEVR. Cases can be inherited in an autosomal dominant, autosomal recessive, or X-linked manner, or can affect individuals with no family history. Examination with wide-field fluorescein angiography is essential and can identify the disease in its earlier stages, enabling the timely treatment, in addition to helping identify asymptomatic family members. The current treatment modalities involve laser photocoagulation of the avascular peripheral retina for neovascular complications and vitreoretinal surgery for retinal detachment. Studies are ongoing to better understand the pathogenesis of FEVR and to improve treatment
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