NCIt definition : An autosomal recessive condition caused by mutation (s) in the CYP4V2 gene, encoding
cytochrome P450 4V2. It is characterized by multiple glistening intraretinal crystalline
deposits scattered throughout the posterior pole associated with progressive atrophy
of the retinal pigment epithelium and choroidal sclerosis. The crystalline deposits
are also present in the corneal limbus in some individuals.;