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Omega-3s may lower intraocular pressure

In Western populations, the fluid pressure within the eye (intraocular pressure, or IOP) increases with age, but in Japan, where diets are rich in omega-3s from fish oil, the reverse is true. 

Elevated IOP increases chances for glaucoma, which can cause blindness, so doctors are looking for non-drug ways to reduce IOP.

In this study, 105 adults with normal IOP and no current or prior diagnosis of glaucoma, took a placebo of olive oil (1,500 mg) or a combination of omega-3s consisting of either krill oil (945 mg EPA, 510 mg DHA), fish oil (1,000 mg EPA, 500 mg DHA) or fish and flaxseed oil (900 mg EPA, 600 mg DHA, 900 mg ALA) per day.

After 90 days, IOP had increased slightly in the placebo group and had declined by 8 percent in the omega-3 groups. Discussing the findings, doctors said, “To our knowledge, this is the first study to report that omega-3 fatty acids lower IOP in humans.”

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