A 28-year-old man was struck in the right eye by a squash ball 2 days ago. Vision is now 6/36. Slit lamp shows a faint brown ring of pigment on the anterior lens capsule centred on the pupil, plus feathery petal-like opacities arranged along the posterior lens sutures. Which combination explains these findings?

• A Vossius ring with traumatic rosette cataract ✓
• B Kayser-Fleischer ring with cupuliform cataract
• C Pigment deposition from iritis with complicated posterior subcapsular cataract
• D Soemmering ring with secondary cataract

Explanation

Blunt trauma imprints pigment from the pupillary margin onto the anterior capsule as a Vossius ring, and shock waves through the lens produce a flower-petal rosette of opacities along the suture lines, classically visible within hours to days. A Soemmering ring is a post-surgical or post-perforation structure of trapped equatorial cortex, not a feature of simple contusion.

Reference: Kanski's Clinical Ophthalmology, 9th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.