A 28-year-old man with tremor, dysarthria, and Kayser-Fleischer rings undergoes slit-lamp examination, which reveals a disc-like greenish-brown opacity in the centre of the lens with radiating spoke-like extensions. What is this lens finding called?
- A Christmas tree cataract
- B Sunflower cataract ✓
- C Snowflake cataract
- D Oil droplet cataract
Correct answer: B. Sunflower cataract
Explanation
The sunflower cataract of Wilson disease results from copper deposition beneath the anterior and posterior lens capsule, producing a central disc with radiating spokes that resembles sunflower petals. The Christmas tree cataract shows polychromatic crystalline opacities and is classically linked to myotonic dystrophy, which distinguishes it from the copper-related sunflower pattern.
Reference: Kanski's Clinical Ophthalmology, 9th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.