1University of California, Berkeley, School of Optometry, Berkeley, California
2Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, Illinois
3Department of Ophthalmology and Visual Sciences, Washington University, St. Louis, Missouri
4Department of Optometry, Carl Vinson Veterans Medical Center, Dublin, Georgia
5Illinois College of Optometry, Chicago, Illinois
6Ohio State University College of Optometry, Columbus, Ohio
7Northeastern State University College of Optometry, Tahlequah, Oklahoma
∗mwhite[email protected]
Supplemental Digital Content: The Appendix is an assessment of masking in ophthalmic literature explaining the method by which a PubMed literature search was performed. In addition, details are given for the justification of using the modified Bang Blinding Index.
Appendix Table A1: Comparison of original Bang and modified Bang Blinding Index. Participant guesses of treatment assignment in the povidone-iodine group and artificial tears group at day 0 and day 4. The Appendix is available at https://links.lww.com/OPX/A487.
Submitted: June 25, 2020
Accepted: February 7, 2021
Funding/Support: Foundation for the National Institutes of Health (5 R21 EY030524 and 5 R34 EY023633), Core grants P30 EY001792 (University of Illinois), P30 EY002687 (Washington University) and an unrestricted grant from Research to Prevent Blindness.
Conflict of Interest Disclosure: None of the authors have reported a financial conflict of interest.
Study Registration Information:https://clinicaltrials.gov/ct2/show/NCT02472223.
Author Contributions and Acknowledgments: Conceptualization: ESS, TPT, MKM, ATEH, SDJ, MOG; Data Curation: JBH; Formal Analysis: MSM, JBH, TPT, MKM, ATEH, CDP, MOG; Funding Acquisition: TPT, MOG; Investigation: MMW, ESS, TPT, MKM, JSH, CEM, ATEH, MOG; Methodology: ESS, TPT, MKM, ATEH, MOG; Project Administration: TPT, MOG; Resources: MKM, MOG; Supervision: TPT, MOG; Writing – Original Draft: MMW, ESS, MSM, FA, JBH, TPT, MKM, JSH, CEM, ATEH, SDJ, MOG; Writing – Review & Editing: MMW, ESS, JBH, TPT, MKM, JSH, CEM, ATEH, SDJ, MOG.
The authors thank Heejung Bang, PhD, Tavé van Zyl, MD, and Timothy Bossie, OD, FAAO.
Supplemental Digital Content: Direct URL links are provided within the text.
