Central halochoroidal atrophy

Central areolar choroidal atrophy is an autosomal dominant hereditary disease. It is a special type of primary choroidal capillary atrophy. Retinal pigment epithelium and choroidal capillaries are atrophied and the major choroidal vessels are exposed. Fundus changes and clinical symptoms are similar to central choroidal atrophy, but are limited to the macula.