CTNNB1 and Familial exudative vitreoretinopathy: A recent survey of the literature found that approximately 50% of such CTNNB1 mutations are associated with ophthalmic abnormalities including familial exudative vitreoretinopathy spectrum (FEVR), visual field defects, retinal detachment, strabismus, hyperopia, and lens and vitreous opacities [7–9].