Chlamydia trachomatis is historically associated with which ocular condition?

Chlamydia trachomatis is historically associated with which ocular condition?

• A. Trachoma
• B. Conjunctivitis due to gonorrhea
• C. Xerophthalmia
• D. Bacterial keratitis

Answer: (A)

Chlamydia trachomatis is classically linked with trachoma, a chronic follicular conjunctivitis that has historically caused blindness in underserved populations. The ocular strains (serovars A–C) infect the conjunctiva, leading to scarring of the tarsal conjunctiva, inward turning of the eyelashes (trichiasis), and corneal damage that can progress to opacity if not treated. This association made trachoma a major public health target in the past, symbolizing the long-standing eye disease caused by this pathogen. Gonococcal conjunctivitis is caused by Neisseria gonorrhoeae, not Chlamydia trachomatis, and presents differently. Xerophthalmia results from severe vitamin A deficiency, not an infectious agent. Bacterial keratitis involves corneal infection by bacteria such as Pseudomonas or Staphylococcus species and is not the classic ocular disease linked to Chlamydia trachomatis.

Chlamydia trachomatis is classically linked with trachoma, a chronic follicular conjunctivitis that has historically caused blindness in underserved populations. The ocular strains (serovars A–C) infect the conjunctiva, leading to scarring of the tarsal conjunctiva, inward turning of the eyelashes (trichiasis), and corneal damage that can progress to opacity if not treated. This association made trachoma a major public health target in the past, symbolizing the long-standing eye disease caused by this pathogen.

Gonococcal conjunctivitis is caused by Neisseria gonorrhoeae, not Chlamydia trachomatis, and presents differently. Xerophthalmia results from severe vitamin A deficiency, not an infectious agent. Bacterial keratitis involves corneal infection by bacteria such as Pseudomonas or Staphylococcus species and is not the classic ocular disease linked to Chlamydia trachomatis.