Sunflower cataract is associated with: September 2011
**Core Concept**
Sunflower cataract is a type of cataract that presents as a central, well-defined opacity surrounded by a clear zone, resembling a sunflower. This unique appearance is due to the characteristic distribution of cortical opacities.
**Why the Correct Answer is Right**
The sunflower cataract is associated with pseudophakic bullous keratopathy, a complication that can occur after cataract surgery. The opacities in the sunflower cataract are thought to be due to the accumulation of fluid and cellular debris in the lens cortex, which is exacerbated by the intraocular lens implant. This process is often seen in patients with a history of uveitis or other intraocular inflammatory conditions.
**Why Each Wrong Option is Incorrect**
* **Option A:** Pseudophakic bullous keratopathy is not typically associated with posterior subcapsular cataracts, which have a different morphology and pathogenesis.
* **Option B:** Traumatic cataracts can present with a variety of morphologies, but the sunflower cataract is not a characteristic feature of traumatic cataracts.
* **Option D:** Congenital cataracts can also present with a range of morphologies, but the sunflower cataract is not typically seen in congenital cataracts.
**Clinical Pearl / High-Yield Fact**
The sunflower cataract is an important diagnostic clue for pseudophakic bullous keratopathy, a condition that can lead to vision-threatening complications if left untreated.
**Correct Answer: C. Pseudophakic bullous keratopathy**