Abstract
ABSTRACT Purpose: To report visual outcomes, microbiologic spectrum, and antibiotic resistance in endophthalmitis patients undergoing pars plana vitrectomy (PPV). Methods: Retrospective study of 32 patients who underwent PPV with microbial analysis. Linear mixed models were utilized to compare visual acuity (VA). Results: Streptococcal species and coagulase-negative staphylococcus (CoNS) were the most common organisms. No resistance to vancomycin or fluoroquinolones was observed. Culture-negative individuals had better VA and lower incidences of retinal detachment (RD) and hypotony and better VA than culture-positive group at post-surgical month 3 (p = .025) and marginally at month 12 (p = .098). CoNS endophthalmitis (final logMAR VA 0.80) was associated with better VA than Streptococcal endophthalmitis (final logMAR VA 2.36) (p = .001). Secondary RD was observed in 33.3% of non-cataract endophthalmitis. Conclusion: No organisms were resistant to vancomycin or fluoroquinolones. Culture-negative endophthalmitis had better VA and lower rates of RD and hypotony than culture-positive group. A high rate of RD was observed in non-cataract endophthalmitis.
Published Version
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