A 16-year-old boy presents with progressive tremors, dysarthria, and Kayser-Fleischer rings on slit-lamp examination. Ophthalmic evaluation reveals a characteristic greenish-brown discoloration of the anterior lens capsule with radiating petaloid spokes. What is this cataract called?
- A Oil drop cataract
- B Rosette cataract
- C Sunflower cataract ✓
- D Blue dot cataract
Correct answer: C. Sunflower cataract
Explanation
Sunflower cataract is pathognomonic for Wilson disease, resulting from copper deposition in the lens capsule and epithelium, producing a greenish-brown discoloration with petaloid spokes radiating from the center. Oil drop cataract is characteristic of galactosaemia. Rosette cataract occurs following blunt trauma and appears as feathery posterior subcapsular opacities. Blue dot cataract is a congenital punctate opacity that rarely affects vision.
Reference: AK Khurana's Comprehensive Ophthalmology, 5th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.