Eye Care for Animals - The Leaders in Veterinary Ophthalmology

Distichiasis, Trichiasis and Ectopic Cilia

Distichiasis is an abnormal condition in which extra eyelashes appear along the lid margin(s) where ordinarily they should not grow. This condition is genetically inherited, but prolonged eye irritation may also cause the unwanted lashes to appear.

Trichiasis is a similar eyelash condition in which eyelashes grow from normal areas other than the eyelid margin and are misdirected toward the eyeball or the cornea.

Ectopic cilia is an eyelash that emerges from underside (conjunctiva) of the upper or lower eyelid. This causes the eyelash to rub against the eye whenever your pet blinks or sleeps.

All three conditions may cause excessive tearing, discomfort, and ocular scarring. Serious injury to the eye, particularly the cornea, may also occur. Early eye damage often is not readily apparent and may be detected only with the aid of special optical instruments. Thus, appropriate treatment can be initiated before serious damage may occur.

In some cases, treatment is not needed when the conditions cause no harm or discomfort.

Important Points in Treatment

• Numerous procedures can be used to correct these disorders. The choice of treatment will be based on your pet’s individual needs.
• Due to the complex, ongoing nature of distichiasis and trichiasis, new irritating eyelashes may appear after the initial corrective procedure. Therefore, the procedure may need to be repeated. One should not become discouraged since correction can be attained. Each additional procedure reduces the likelihood of recurrence.

If you have any questions regarding distichiasis, trichiasis, or ectopic cilia, please call Eye Care for Animals.