Two years after cataract surgery, a 66-year-old patient notices the intraocular lens has shifted downward, with its superior edge visible in the pupil and half the pupil showing aphakia. Slit lamp confirms rupture of the inferior bag with zonular dehiscence. What is this complication termed?

• A Sunrise syndrome
• B Sunset syndrome ✓
• C Windshield wiper syndrome
• D Pupillary capture

Explanation

Sunset syndrome describes inferior subluxation or dislocation of a posterior chamber IOL through a ruptured inferior capsule or zonules, leaving the optic edge visible superiorly in the pupil. Sunrise syndrome is the opposite, with superior displacement of the IOL, while windshield wiper syndrome refers to a loose IOL swinging horizontally with head movement and pupillary capture means the optic is entrapped behind the iris.

Reference: Parsons' Diseases of the Eye, 23rd ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.