Caffeine May Help Dry Eyes

Written by eHealth Navigator

Your coffee habit may help improve dry eyes, according to a small study conducted at the University of Tokyo's School of Medicine and published online in the journal, Ophthalmology.

In this double-blind placebo-controlled study, people who were given caffeine capsules (and not real coffee) had significantly improved production of tears compared to the placebo-takers.

All 78 study participants produced more tears after consuming caffeine than they did after taking a placebo.  In the study, tear volume was measured within 45 minutes of consuming the tablets, and none of the participants knew which substance they had received.  All avoided caffeine use for six days before each session, and all were free from high blood pressure, eye allergies, glaucoma, dry eye syndrome, and other problems that can change tear production.

The caffeine may stimulate tear glands in some way, as it does saliva and digestive juice production.   This could be a big deal for the many people, especially seniors who suffer from dry eye syndrome, namely the inability to produce tears, which not only leads to uncomfortable symptoms such as pain and irritation, but which may also, in severe cases, lead to vision loss.

Last Updated on Tuesday, 3 May 2016 11:13PM