title: Progressive degeneration of the photopic system.
mesh_terms: D000221:Adaptation, Ocular; D000293:Adolescent; D000328:Adult; D003117:Color Vision Defects / Q000209:etiology; D004585:Electrooculography; D004596:Electroretinography; D005260:Female; D005451:Fluorescein Angiography; D005654:Fundus Oculi; D006801:Humans; D008027:Light; D008266:Macula Lutea; D008297:Male; D008875:Middle Aged; D009887:Ophthalmoscopy; D010375:Pedigree; D012162:Retinal Degeneration / Q000175:diagnosis / Q000209:etiology / Q000235:genetics; D012607:Scotoma / Q000209:etiology; D013997:Time Factors; D014792:Visual Acuity; D014794:Visual Fields