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Artificial tears found to improve vision in patients with dry eye

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BOSTON — A researcher reported here at Academy 2011 Boston that 2 weeks of treatment with artificial tears resulted in an improvement in visual performance in subjects with dry eye.

William H. Ridder, OD, PhD, FAAO, stated in a poster that he measured contrast thresholds in 21 dry eye subjects before artificial tear use and after 1 week and 2 weeks of using tears at least twice a day. "Dry eye patients typically complain of fluctuating vision and have poorer contrast thresholds than normal patients," Dr. Ridder said in the poster.

"Treating dry eye subjects for 2 weeks with an artificial tear resulted in a decrease in the contrast thresholds or an increase in contrast sensitivity. This may be the result of the tear layer becoming more stable after a couple of weeks of artificial tear use," Dr. Ridder concluded.