New Discoveries about Eyelids, Blink Rate, Dry Eye and Computers
Dry eye, in the United States and worldwide, is becoming a crisis. Eighty-percent of eye doctor patients complain of dry eye symptoms such as itching, burning, blurred vision, red eyes, headache and fatigue. The importance of the eyelid in dry eye has only recently been recognized. Researchers are discovering that if the tear film is dry, the eyelids will also be dry. This is especially true in chronic dry eye and in people who live in areas of extreme dry air or air pollution, or who spend a lot of time indoors.
The eyelid is critical in two areas of dry eye research:
1. Blink rate: Dry eye and tear film dehydration can result from a low rate of eyelid blinking. It may also result from an excessively high blink rate.
2. Eyelid health: The majority of dry eye patients have unhealthy and dry eyelids (blepharitis).