In a 48-week intervention trial, researchers tested Lutein supplementation for vision protective-function in patients with retinitis pigmentosa (RP). The conclusion of the study was as follows: “Comparing the development of vision measures against the natural loss expected to occur over the course of the 48 weeks, most measures showed reduced decline, and these reductions were significant for normal illumination”.
Ophthalmology (BMC Ophthalmology 2006, 6:23)
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