Does physician face mask use during intravitreal injections
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This retrospective, comparative cohort study evaluated the effect of physician face mask while administering anti-VEGF injections on rates of endophthalmitis.

The study included 483,622 intravitreal injections administered over a 74-month period that were separated based on whether the physician wore a mask during the injection or not (30,162 vs. 453,460). Rates of endophthalmitis and the microbial spectrum of causative organisms were compared between the 2 groups.

Physician face mask use did not significantly affect the rate of endophthalmitis. However, there were no cases of endophthalmitis secondary to oral flora organisms in the face mask group compared with 16 cases in the no-face-mask group. Of the cases sent for culture, 5 out 7 (71%) endophthalmitis cases in the face mask group and 47 out of 119 (39%) cases in the no-face-mask group were culture positive.

Clinical significance
This study is of interest during this pandemic. Since physician mask use is universal due to COVID-19 precautions, we may be able to obtain more data about how physician mask use during anti-VEGF injections affects rate of endophthalmitis.

Source: https://www.aao.org/editors-choice/does-physician-face-mask-use-during-intravitreal-i
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