title: Bull's eye maculopathy with early cone degeneration.
abstract: Seven patients with acquired cone degeneration were investigated. The initial visual acuities in 6 of the series were normal or near normal but later deteriorated, although they did not fall below 6/60 in any patient. All the patients tested had colour vision defects and abnormalities on electrodiagnostic testing referable to the cone system. The typical picture was of a bull's eye maculopathy accompanied by an annular scotoma around the fovea, but the clinical and electrophysiological investigations showed that there were considerable variations especially in the early stages.
mesh_terms: D000328:Adult; D003118:Color Perception; D004568:Electrodiagnosis; D005260:Female; D005451:Fluorescein Angiography; D005500:Follow-Up Studies; D006801:Humans; D008268:Macular Degeneration / Q000175:diagnosis* / Q000473:pathology / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D010786:Photoreceptor Cells / Q000503:physiopathology; D012162:Retinal Degeneration / Q000175:diagnosis*; D014792:Visual Acuity