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Dry Eyes

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Dry Eyeshot!Tooltip 02/08/2011 Hits: 14303
Each time we blink the eye is coated with a film of tears that help keep the surface of the eye smooth and ensure good, clear vision. A condition called dry eyes occurs when too few tears are produced to lubricate the eye. This film of tears is made up of three layers. One is an oily outer layer produced by glands in the eyelids, this layer helps to stop fluid evaporating from the eye. Another is a watery middle layer produced by the tear (lacrimal) gland, this layer of tears cleans the eye and washes out any foreign particles. The third is an inner layer of mucus produced by the conjunctiva, the thin lining inside the eyelid, this layer helps tears to spread evenly across the eye.