Choroideremia in a genotypically normal female. A case report.

A 10-year-old girl demonstrated advanced choroideremia. She had decreased visual acuity, high myopia, and characteristic fundus findings of choroideremia. Her ERG, dark adaptation, visual fields, and fluorescein angiogram were all abnormal; the results were consistent with choroideremia. Her chromosome studies revealed that she was a genotypically normal female. Her parents were examined ophthalmologically and found to be normal.