Dry Eye


A condition caused by the reduction in quality and quantity of tears. Common symptoms include pain from eye irritation; a sandy or gritty sensation; decreased tolerance to contact lenses; and sensitivity to light. In early stages, the symptoms may seem to appear and disappear, but generally worsen as the day progresses. The condition is typically treated with artificial tears and/or prescription drops or ointments. Closure of the tear drainage system (punctal occlusion) may also improve symptoms.

Dry eyes affect millions of people throughout the world. The condition is most common in women after menopause, but it can affect both sexes and all age groups, including children.

The symptoms of dry eyes are well known to sufferers — irritation, redness, sensitivity to light, and the constant sensation of foreign matter in the eye. However, these symptoms are less frequently recognized by health care professionals, who often neglect or minimize them. A clearer understanding of the nature and causes of dry eyes may enable sufferers to cope with their condition and participate in the care and treatment of their eyes.


Causes of Dry Eyes

There are many causes of dry eyes. Aging is certainly a factor; as people age, they secrete fewer tears, leading to dryness. Hormones probably play a role, as dry eyes are also more common in women than men, especially post-menopausal women. Systemic diseases, like Sjogren's syndrome, rheumatoid arthritis, lupus and Riley-Day syndrome, and diseases of the eye that affect the eyelids, the eye's surface or the cornea can also cause or aggravate dry eyes. Similarly, conditions which affect the eye's ability to close or to blink completely also dry out the surface of the eye.

Antihistamines, tranquilizers, blood pressure, heart medications, and other types of drugs can lead to dry eyes. Even the topical artificial teardrops used to treat dry eyes can actually aggravate the condition, due to the detergent-like preservatives they contain.

Some patients experience dryness after refractive surgery. There is a decrease in tear production following LASIK and Phototherapeutic Refractive Surgery that can persist 3-6 months. This can be significant enough that it requires frequent administration of artificial tear substitutes.


The Tear Film

The tear film protects the eye by cleansing and flushing harmful chemicals and environmental contaminants from the surface
The eyelids are also important in maintaining the tear film. Eyelids, which open and close normally, spread tears over the surface of the eye (epithelium). That does not occur in patients with abnormal lid position, poor lid closure, or an incomplete blink.


Treatment of Dry Eyes

Initially, dry eyes are usually treated with topical lubricating drops (artificial tears) applied up to six times daily. Ointments are at times prescribed for nighttime use. Commercially available drops cannot be used more frequently because they contain detergent-based preservatives. 
Overuse of these drops can cause tears to break up rapidly, actually aggravating a dry eye condition. Artificial tears must be used to prevent irritation and other symptoms. Using the drops only after the eyes become irritated is not effective.

If discomfort continues, the next step is closing the tear drainage ducts. This is done with silicone or collagen plugs inserted in the tear ducts which can be removed if needed. At times, permanent cautery occlusion may be done.

Patients with dry eyes must take an active role in the treatment of their dry eyes. They must use the prescribed medications. They must protect their eyes from irritation. They must note when and where their symptoms are worse or better so their doctor can discover what contributes to their dry eyes.

For more information about dry eyes, please click here to visit www.dry-eye-syndrome.net


Cliffside Laser Eye and Cataract Center
663 Palisade Ave., Suite 303
Cliffside Park, NJ 07010
Phone: 201-941-9400
Fax: 201-941-5840

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