Definition of Trachoma:

Trachoma is an eye infection caused by bacteria.

Causes, incidence, and risk factors:

Trachoma is caused by infection with the bacteria Chlamydia trachomatis. Symptoms being 5 to 12 days after being exposed to the bacteria. The condition begins slowly as conjunctivitis (irritation near the eye, "pink eye"), which if untreated may lead to scarring.

If the eyelids are severely irritated, the eyelashes may turn in and rub against the cornea. This can cause eye ulcers, further scarring, vision loss, and even blindness.

Trachoma occurs worldwide, primarily in rural settings in developing countries. It frequently affects children, although the consequences 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. In addition, certain flies can spread the bacteria.