Current opinion in ophthalmology · 2025
Management of endophthalmitis: to culture or not to culture?
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Samuelson Annika G, Patel Samir N, Garg Sunir J
Аннотация
PURPOSE OF REVIEW: To review the role of microbial cultures in managing endophthalmitis following cataract surgery and intravitreal injections.
RECENT FINDINGS: The endophthalmitis vitrectomy study (EVS) continues to guide the management of endophthalmitis including its recommendation for intraocular vitreous sampling. Vitreous cultures have better diagnostic yield than aqueous cultures. Advances in culture techniques have improved the efficiency and sensitivity of pathogen identification. While culture results are useful for prognostication, microbiology data rarely changes management in endophthalmitis following cataract surgery or intravitreal injections. Endophthalmitis managed without microbial cultures had similar outcomes to eyes managed with microbial cultures.
SUMMARY: Despite advances in culture techniques, most institutions still rely on gram stain and microbial cultures, often requiring several days for results. Initial administration of empiric antibiotics occurs before microbiology data becomes available, limiting the utility of cultures in clinical management. Despite concerns for antibiotic resistance, the large majority of postcataract surgery and postintravitreal injection endophthalmitis pathogens are susceptible to vancomycin and ceftazidime. Given this, obtaining intraocular specimens can be deferred if it poses a delay to prompt treatment with intravitreal antibiotics. Emerging culture techniques hold promise for more rapid and sensitive pathogen identification, which could change the landscape of culture guidelines and improve clinical usefulness.
RECENT FINDINGS: The endophthalmitis vitrectomy study (EVS) continues to guide the management of endophthalmitis including its recommendation for intraocular vitreous sampling. Vitreous cultures have better diagnostic yield than aqueous cultures. Advances in culture techniques have improved the efficiency and sensitivity of pathogen identification. While culture results are useful for prognostication, microbiology data rarely changes management in endophthalmitis following cataract surgery or intravitreal injections. Endophthalmitis managed without microbial cultures had similar outcomes to eyes managed with microbial cultures.
SUMMARY: Despite advances in culture techniques, most institutions still rely on gram stain and microbial cultures, often requiring several days for results. Initial administration of empiric antibiotics occurs before microbiology data becomes available, limiting the utility of cultures in clinical management. Despite concerns for antibiotic resistance, the large majority of postcataract surgery and postintravitreal injection endophthalmitis pathogens are susceptible to vancomycin and ceftazidime. Given this, obtaining intraocular specimens can be deferred if it poses a delay to prompt treatment with intravitreal antibiotics. Emerging culture techniques hold promise for more rapid and sensitive pathogen identification, which could change the landscape of culture guidelines and improve clinical usefulness.