The Endophthalmitis Vitrectomy Study (EVS) found that immediate vitrectomy (compared to vitreous tap/biopsy) was superior in which specific clinical situation?

• A All post-cataract endophthalmitis regardless of visual acuity
• B Post-cataract endophthalmitis with presenting visual acuity of light perception only ✓
• C Post-cataract endophthalmitis with visual acuity of hand movements or better
• D Post-cataract endophthalmitis in diabetic patients only

Explanation

The Endophthalmitis Vitrectomy Study (EVS) demonstrated that immediate pars plana vitrectomy provided superior visual outcomes compared to vitreous tap/biopsy only in patients presenting with light perception (LP) vision. In patients with hand movements (HM) or better vision, vitrectomy offered no additional benefit over tap/biopsy. The study also showed that systemic antibiotics did not improve outcomes in post-cataract surgery endophthalmitis. This remains a landmark benchmark for managing post-operative endophthalmitis.

Reference: Khurana Comprehensive Ophthalmology, 7th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.