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Updated: Feb 10, 2026

Intravitreal Injection and Quantitation of Infection Parameters in a Mouse Model of Bacterial Endophthalmitis
Published on: February 6, 2021
Endophthalmitis Associated With Intravitreal Injections of Anti-VEGF Agents at a Tertiary Referral Center: In-House
Background And Objective:
To report the incidence rates, causative organisms, and visual acuity (VA) outcomes in patients with endophthalmitis associated with intravitreal injection of anti-vascular endothelial growth factor inhibitors.
Patients And Methods:
Retrospective case series between 2005 and 2017.
Results:
The study included 39 eyes of 39 patients, including 27 (69%) referred and 12 (31%) institutional patients. The use of topical antibiotics after an injection was gradually phased out at the authors' institution, where the preinjection rate of all clinically suspected endophthalmitis was 0.013% (24 of 183,898). The most common isolates were coagulase-negative Staphylococcus and Streptococcus. A VA of 5/200 or better was achieved in 21 of 39 eyes (54%) overall and in two of 15 eyes (13%) infected with Streptococcus.
Conclusions:
The rate of post-intravitreal injection endophthalmitis is low. Outcomes were generally poor, and the worst were associated with Streptococcus. [Ophthalmic Surg Lasers Imaging Retina. 2018;49:313-319.].
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