Monday, December 15, 2008

WHAT IS DRY EYE SYNDROME?

our eyes are lubricated by tears that are produced by glands around the eye.  There are two types of tears: moisturising tears and reflex tears. Moisturising tears are produced continuously, while reflex tears are produced in response to irritation or emotion. Dry eye syndrome is a condition in which production of moisturising tears is dramatically reduced, making the eyes feel scratchy and look red. When the eyes become irritated, some people experience reflex tearing, which is why tearing  can also be a symptom of dry eye syndrome. In addition, people with dry eyes sometimes find they can no longer comfortably wear contact lenses. There are many possible causes of dry eyes. The most common cause is age, because production of moisturizing tears decreases as people grow older. In women, hormonal changes- especially those associated with pregnancy or menopause-can result in dry eyes. Environmental irritants may also play a role. The treatment is lubrication.

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