The Endophthalmitis Vitrectomy Study (EVS) demonstrated that immediate vitrectomy (rather than vitreous tap alone) is beneficial in which subset of post-cataract endophthalmitis patients?

• A Patients with visual acuity of hand motions or better at presentation
• B Patients presenting within 24 hours of symptom onset
• C All patients regardless of visual acuity
• D Patients with visual acuity of light perception only at presentation ✓

Explanation

The EVS found that in post-cataract endophthalmitis, immediate vitrectomy provided significantly better visual outcomes only in patients presenting with visual acuity of light perception (LP) only. Patients with hand motions (HM) or better vision did equally well with vitreous tap and inject or with vitrectomy. Therefore, LP vision or worse at presentation is the key indication for immediate vitrectomy in this context.

Reference: Khurana Comprehensive Ophthalmology, 7th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

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