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Trachoma

Trachoma is a bacterial infection of the eye.

Alternative Names

Granular conjunctivitis; Egyptian ophthalmia; Conjunctivitis - granular

Causes

Trachoma is caused by infection with the bacteria Chlamydia trachomatis.

The condition occurs around the world. It is most often seen in rural areas of developing countries. Children are often affected, but the scarring caused by the infection may not be noticed until later in life. The condition is rare in the United States. However, It is more likely to occur in crowded or unclean living conditions.

Trachoma is spread through direct contact with infected eye, nose, or throat fluids. It can also be passed 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, appearing as inflammation of the tissue lining the eyelids (conjunctivitis , or "pink eye"). Untreated, this may lead to scarring.

Symptoms may include:

  • Cloudy cornea
  • Discharge from the eye
  • Swelling of lymph nodes just in front of the ears
  • Swollen eyelids
  • Turned-in eyelashes

Exams and Tests

The health care provider will do an eye exam to look for 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.

Lab tests are needed to identify the bacteria and make an accurate diagnosis.

Treatment

Antibiotics can prevent long-term complications if used early in the infection. In certain cases, eyelid surgery may be needed to prevent long-term scarring, which can lead to blindness if not corrected.

Outlook (Prognosis)

Outcomes are very good if treatment is started early before scarring and changes to the eyelids develop.

Possible Complications

If the eyelids become very irritated, the eyelashes may turn in and rub against the cornea. This can cause eye ulcers, additional scars, vision loss, and possibly, blindness.

When to Contact a Medical Professional

Call your health care provider if you or your child recently visited an area where trachoma is common and you notice symptoms of conjunctivitis.

Prevention

Spread of the infection can be limited by washing your hands and face often, keeping clothes clean, and not sharing items such as towels.

References

Chidambaram JD, Chandler RD, Lietman TM. Pathogenesis and control of blinding trachoma. In: Tasman W, Jaeger EA, eds. Duane's Ophthalmology 2013. Philadelphia, PA: Lippincott Williams & Wilkins; 2013:vol 5, chap 60.

Updated: 9/2/2014

Franklin W. Lusby, MD, ophthalmologist, Lusby Vision Institute, La Jolla, CA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.


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