Dry Eye

The eye’s tears are a necessity to maintain good ocular health and clear vision. An eye that is dry either does not produce enough tears, or the tears that are present evaporate too rapidly. Dry Eye is usually considered a normal part of the aging process, and may also be caused by certain medications such as antihistamines, oral contraceptives, and antidepressants. Systemic health problems like arthritis, or trauma secondary to chemical or thermal burns are other causes of Dry Eye. There may be instances when the tear film is adequate, but due to eyelid problems, the tears are unable to properly coat the front surface of the eye. Symptoms of Dry Eye include redness, burning, a scratchy foreign body sensation, or intermittent blurred vision. On many occasions, a dry eye will water excessively. When the front surface of the eye becomes irritated due to dryness, reflex tears are produced in an attempt to wash out the source of irritation. An inadequate tear film can increase the risk of infection, and in extreme cases can cause scarring of the conjunctiva and cornea. Unfortunately, Dry Eye cannot be cured, but there are effective treatments available in most instances. Artificial teardrops or ointments are usually sufficient to alleviate symptoms. When these are ineffective, the tear ducts may be closed either by small plugs or surgically, to slow or stop the normal drainage of the tears.