June 2022
Volume 63, Issue 7
Open Access
ARVO Annual Meeting Abstract  |   June 2022
The Effect of Physician Face Mask Use on Post-injection Endophthalmitis
Author Affiliations & Notes
  • Blake Hugo Fortes
    Ophthalmology, Mayo Clinic Minnesota, Rochester, Minnesota, United States
  • Konstantin Astafurov
    Ophthalmology, Mayo Clinic Minnesota, Rochester, Minnesota, United States
  • Wendy M. Smith
    Ophthalmology, Mayo Clinic Minnesota, Rochester, Minnesota, United States
  • Andrew J. Barkmeier
    Ophthalmology, Mayo Clinic Minnesota, Rochester, Minnesota, United States
  • Timothy W Olsen
    Ophthalmology, Mayo Clinic Minnesota, Rochester, Minnesota, United States
  • Raymond Iezzi
    Ophthalmology, Mayo Clinic Minnesota, Rochester, Minnesota, United States
  • Sophie J. Bakri
    Ophthalmology, Mayo Clinic Minnesota, Rochester, Minnesota, United States
  • Footnotes
    Commercial Relationships   Blake Fortes None; Konstantin Astafurov None; Wendy Smith None; Andrew Barkmeier None; Timothy Olsen Secretary of Quality at the American Academy of Ophthalmology, Code E (Employment), Novartis, Code F (Financial Support), iMacular Regeneration, LLC, Code O (Owner); Raymond Iezzi Seeing Medicines, Code C (Consultant/Contractor), Off-label/Investigation usage: Genentech-Avastin, Code F (Financial Support); Sophie Bakri Abbvie, Code C (Consultant/Contractor), Allegro, Code C (Consultant/Contractor), Apellis, Code C (Consultant/Contractor), Alimera, Code C (Consultant/Contractor), Allergan, Code C (Consultant/Contractor), Kala, Code C (Consultant/Contractor), Genentech, Code C (Consultant/Contractor), Novartis, Code C (Consultant/Contractor)
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science June 2022, Vol.63, 4298. doi:
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      Blake Hugo Fortes, Konstantin Astafurov, Wendy M. Smith, Andrew J. Barkmeier, Timothy W Olsen, Raymond Iezzi, Sophie J. Bakri; The Effect of Physician Face Mask Use on Post-injection Endophthalmitis. Invest. Ophthalmol. Vis. Sci. 2022;63(7):4298.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : To examine the impact of physician face mask use on the rates and outcomes of postinjection endophthalmitis.

Methods : Design: Retrospective, comparative cohort study. Setting: Multi-center. Study population: Eyes that received intravitreal anti-VEGF injections from January 1, 2005 to January 31, 2020 at Mayo Clinic Rochester (MCR) and at Mayo Clinic Health System (MCHS) sites. Intervention: Cases were divided into the “No Mask” versus “Mask” group depending on whether the ophthalmologist performing the injection wore a mask. Main outcome measures: Rate of endophthalmitis, microbial spectrum, and visual acuity.

Results : 164,824 total injections were performed at MCR and MCHS sites. Of these, 66,098 injections were in the No Mask group and 98,726 injections were in the Mask group. Overall, there were no significant differences in the rates of infectious endophthalmitis in the No Mask vs. Mask cohorts (overall: 0.030% vs. 0.042%; P=0.24; infectious: 0.018% vs. 0.013%; P=0.42). At MCR alone, there was a significant reduction in the infectious endophthalmitis rate between the No Mask vs. Mask groups (0.030% vs. 0.003%; P<0.001). Only 2 cases of infectious endophthalmitis occurred in MCR after the face mask policy was first implemented (1 in 30,000 injections). At presentation and at 6 months, average visual acuity was similar for both groups.

Conclusions : Overall, physician face mask use did not impact the rate or visual outcome of postinjection endophthalmitis. However, there was a significant reduction at MCR after implementation of masks and other quality improvement measures that has led to a low rate of postinjection endophthalmitis.

This abstract was presented at the 2022 ARVO Annual Meeting, held in Denver, CO, May 1-4, 2022, and virtually.

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