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Lutein in combination with vitamin A may slow vision loss

April 15, 2010

A daily supplement of lutein plus vitamin A may slow vision loss associated with retinitis pigmentosa,according toa new study.

In the randomized controlled trial, 225 non-smokers with retinitis pigmentosa aged between 18 and 60 were randomly assigned to receive vitamin A only (15,000 IU, retinyl palmitate) or vitamin A plus lutein (12 mg per day) for four years (1). While no significant effect was observedin the overall decline in vision between the two groups, a significant reduction in the rate of vision loss in the mid-peripheral region was observed. No toxicity concerns were recorded during the study.

Rentinitis pigmentosa is a group of inherited eye diseasesthat causethe degeneration of photoreceptor cells in the retina andlead toprogressive vision lossin approximately one in 4,000 people worldwide. Previous studies had found that taking vitamin A slows the decline in retinal function and vision loss.

References

  1. Berson E.L. et al. Clinical Trial of Lutein in Patients With Retinitis Pigmentosa Receiving Vitamin A. Archives of Ophthalmology. 2010; 128(4):403–411.