Cicatrisisng trachoma is seen in –
**Core Concept**
Cicatricial trachoma is a late complication of trachoma, a chronic infectious disease caused by Chlamydia trachomatis. It leads to scarring and destruction of the tarsal conjunctiva and cornea, ultimately resulting in blindness if left untreated.
**Why the Correct Answer is Right**
Cicatricial trachoma occurs due to repeated episodes of infection and inflammation in the conjunctiva, leading to a chronic inflammatory response. The repeated scarring and fibrosis of the conjunctiva cause it to become thickened, leading to mechanical entropion (eyelid turning inward) and subsequent exposure of the cornea, which is a hallmark of cicatricial trachoma. The scarring of the tarsal conjunctiva also leads to a reduction in tear production, further exacerbating the condition.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect as cicatricial trachoma is a late complication of trachoma and not a primary stage of the disease.
**Option B:** This option is incorrect as follicular trachoma refers to the presence of conjunctival follicles, which is an early stage of trachoma.
**Option C:** This option is incorrect as inflammatory trachoma refers to the acute inflammatory stage of the disease, which is not the same as cicatricial trachoma.
**Clinical Pearl / High-Yield Fact**
Cicatricial trachoma is a major cause of blindness worldwide, particularly in areas with poor sanitation and hygiene, where Chlamydia trachomatis is prevalent.
**Correct Answer:** D.