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Omega-3s help slow vision loss
Retinitis pigmentosa (RP) is an inherited disease of the retina of the eye that first reduces peripheral vision and then central vision, and makes it difficult to see at night.

While there is no cure, doctors often prescribe vitamin A, which the retina needs to survive. In one study, researchers measured omega-3s in the diets of 357 adults with RP who had been taking 15,000 IU of vitamin A palmitate per day for an average of five years, under the care of a physician.

Compared to those who consumed low levels of omega-3s, those who got an average of at least 200 mg of omega-3 fatty acids per day saw acuity for distance vision decline 40 percent more slowly annually, and central field-of-vision decline 50 percent more slowly.

Doctors explained that omega-3s help proteins in the eye transport vitamin A to the retina.

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