We compared visual acuity with visual field radius in 235 patients with typical retinitis pigmentosa and no evidence of other visual acuity-limiting problems (such as cataract or foveal cystoid edema). Results show a strong relationship between visual acuity loss and proximity to the fovea of the visual field border (shortest distance from the foveal center to the border of the V-4-e isopter) for these patients. Ninety-six percent of patients with central visual field radii greater than 30° have visual acuities of 20/40 or better; 32° of patients with central visual field radii smaller than 10° have visual acuity of 20/40 or better.
|Original language||English (US)|
|Number of pages||4|
|Journal||Archives of ophthalmology|
|State||Published - Mar 1990|
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