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Thanks to the work of NEI scientists and grantees, we’re constantly learning new information about the causes and treatment of vision disorders. Get the latest updates about their work — along with other news about NEI.
Docosahexaenoic acid (DHA) supplementation at a dose of 1200 milligrams per day for four years did not, on average, slow the course of retinitis pigmentosa (RP) in adult RP patients already taking vitamin A supplements..
An experimental 'rescue' of retinas by treating eyes with certain stem cells has been shown to preserve visual function in mice that were genetically predisposed to degenerative diseases of the retina.
Most adults with blinding retinitis pigmentosa (RP) should take a daily, 15,000 IU vitamin A supplement, based on results from a large, randomized clinical trial published today in the Archives of Ophthalmology.