Ataxia-telangiectasia (A-T) is an inherited, progressive, neurological disorder characterized by an impaired ability to coordinate body movements and a tendency to develop certain types of cancer. Ocular features associated with A-T include nearsightedness (myopia), astigmatism, strabismus, and blepharitis.
Nearsightedness, or myopia, is a common ocular feature of A-T. People with myopia have difficulty seeing things that are far away and may need to wear corrective eyeglasses. Astigmatism is another ocular feature associated with A-T. People with astigmatism have difficulty seeing things that are both near and far away. Strabismus, or crossed eyes, is another ocular feature of A-T. People with strabismus have difficulty aligning their eyes, which can cause double vision. Blepharitis is an inflammation of the eyelids. People with A-T may experience redness, itching, and burning of the eyelids.
Ocular features of A-T can be managed with eyeglasses, contact lenses, or surgery. In some cases, vision may be improved with vision therapy. In addition, people with A-T should be regularly monitored for signs of eye disease, such as cataracts or glaucoma. People with A-T should also wear sunglasses when outdoors to protect their eyes from ultraviolet light.