Staring at screens all day linked to changes in eye secretions

June 16, 2014 6:55 PM

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Staring at screens all day linked to changes in eye secretions

NEW YORK (Reuters Health) – Office workers who spend long hours looking at computer screens have changes in their tear fluid similar to people with the disease known as dry eye, according to a study from Japan.

The protein MUC5AC, secreted by cells in the upper eyelid, makes up part of the normally occurring mucus layer, or “tear film,” that keeps the eye moist. But study participants with the most screen time had MUC5AC levels nearing those of people with diagnosed dry eye.

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