Vitamin D may reduce eye disease

Noninfectious uveitis (NIU) is a serious sight-threatening inflammatory condition of the eye.

In this study, doctors compared vitamin D levels in 558 people with NIU to 2,790 people without NIU on the basis of age, sex, race, ethnicity, and a recent vitamin D measurement. People with vitamin D levels of at least 21 nanograms per milliliter of blood were 21 percent less likely to have NIU compared to those with lower vitamin D levels.  

In a similar study, doctors compared vitamin D levels in 436 people with uveitis or scleritis —another inflammatory eye disease—to 329 matching people without eye disease. Those with low vitamin D levels were nearly twice as likely to have uveitis compared to similar people with normal vitamin D levels.

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