Wear sunglasses to avoid common eye disease

If your job leads to spending most of the time outdoors, do not forget to wear sunglasses as it can save you from developing a common eye disease.

According to a study, residential geography, time spent in the sun and whether or not sunglasses are worn may help explain why some people develop exfoliation syndrome (XFS), an eye condition that is a leading cause of secondary open-angle glaucoma and can lead to an increased risk of cataract.

"Lifetime outdoor activities may contribute to XFS so a more widespread use of UV-blocking eyewear can help prevent XFS," said lead study author Louis Pasquale, as associate professor of ophthalmology at Harvard Medical School (HMS).

Researchers conducted a clinic-based, case-control study in the US and Israel, involving XFS cases and control individuals.

They measured weighted lifetime average latitude of residence and average number of hours per week spent outdoors as determined by validated questionnaires.

They found that genetic or environmental factors also contribute to XFS.

Previous studies have shown that residential (geographic) history and extent of solar exposure may be important risk factors for XFS.

The study appeared in the journal Ophthalmology.

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