Causes
Trachoma is caused by infection with the bacteria Chlamydia trachomatis.
The
condition occurs worldwide, mostly in rural settings in developing
countries. It frequently affects children, although the effects of
scarring may not be seen until later in life. While trachoma is rare in
the United States, certain populations marked by poverty, crowded living
conditions, or poor hygiene are at higher risk for this illness.Trachoma is spread through direct contact with infected eye, nose, or throat secretions or by contact with contaminated objects, such as towels or clothes. Certain flies can also spread the bacteria.
Symptoms
Symptoms begin 5 to 12 days after being exposed to the bacteria. The condition begins slowly as inflammation of the tissue lining the eyelids (conjunctivitis, or "pink eye"), which if untreated may lead to scarring.Exams and Tests
An eye exam may reveal scarring on the inside of the upper eye lid, redness of the white part of the eyes, and new blood vessel growth into the cornea.Laboratory tests are needed to accurately identify and detect the bacteria and diagnose trachoma