In the classification of rhegmatogenous retinal detachment (RRD), which feature defines 'PVR grade C' (proliferative vitreoretinopathy) according to the updated Silicone Oil Study classification?

• A Full-thickness retinal folds in one quadrant with fixed star folds
• B Wrinkling of the inner retinal surface with mild surface irregularity
• C Massive periretinal proliferation with circumferential folds and funnel detachment
• D Full-thickness retinal folds in more than one quadrant or subretinal membranes ✓

Explanation

PVR (proliferative vitreoretinopathy) grading: Grade A = vitreous haze, pigment clumps; Grade B = wrinkling of inner retinal surface; Grade C = full-thickness retinal folds. Grade C is subdivided by number of quadrants involved — Grade C1-C3 (focal, diffuse, or subretinal). Grade C represents the threshold at which surgical outcomes significantly worsen. The term 'massive periretinal proliferation' with funnel detachment was used in older classification (Retina Society terminology) but modern usage follows the updated scheme.

Reference: Khurana Comprehensive Ophthalmology, 7th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.