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Prolonged screen time decreases eye tears

A recently published study finds people who look at their computer screens for an average of 8 hours daily have low MUC5AC, a protein that is part of tear film secreted from the cells of the upper eyelid.
A recently published study finds people who look at their computer screens for an average of 8 hours daily have low MUC5AC, a protein that is part of tear film secreted from the cells of the upper eyelid.
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