Following is feature of Fusch’s hetero chromic iridocyclitis ?
**Core Concept**
Fuchs' heterochromic iridocyclitis is a form of chronic, unilateral, non-granulomatous uveitis characterized by heterochromia of the iris, which is a difference in color between the two irises. This condition is often associated with a mild inflammatory response in the anterior chamber of the eye.
**Why the Correct Answer is Right**
The correct answer is related to the distinctive feature of Fuchs' heterochromic iridocyclitis, which is the heterochromia of the iris. This occurs due to the inflammation and scarring of the iris stroma, leading to a decrease in melanin production on the affected side, resulting in a lighter color compared to the unaffected side. This heterochromia is a hallmark of Fuchs' heterochromic iridocyclitis and can be observed during a clinical examination.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because Fuchs' heterochromic iridocyclitis is not typically associated with a severe inflammatory response, which would lead to a granulomatous reaction.
**Option B:** This option is incorrect because Fuchs' heterochromic iridocyclitis is a unilateral condition, whereas the correct feature is specific to one eye.
**Option D:** This option is incorrect because Fuchs' heterochromic iridocyclitis is not characterized by a significant increase in intraocular pressure.
**Clinical Pearl / High-Yield Fact**
Fuchs' heterochromic iridocyclitis is often associated with a mild, chronic course, and patients may not experience significant symptoms, making it a challenging diagnosis. However, the presence of heterochromia is a crucial clue to this condition, and a thorough ophthalmological examination is essential for diagnosis.
**Correct Answer: C. Heterochromia of the iris.**