| Phenotype details |
Stargardt disease/Cone-rod dystrophy; Initial complaints of blurred central vision without a history of night blindness, poor visual acuity (typically 20/100 or worse, with progressive decline from an early age), impairment of color vision, funduscopic evidence of trophic macular degeneration, peripheral disturbances including pigment clumping and/or pigment epithelial thinning, and greater or earlier loss of cone than rod ERG amplitude; Bilateral central vision loss; fundus presenting with a beaten-bronze appearance, the presence of orange-yellow flecks in the retina from the posterior pole to the mid periphery, or both; fluorescein angiography showing typical dark choroid; and normal to subnormal electroretinography (ERG) results. |