Author contributions
XF: Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Visualization, Writing – original draft, Writing – review & editing. LY: Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing. NY: Data curation, Writing – review & editing. IK: Data curation, Writing – review & editing. MK: Conceptualization, Funding acquisition, Methodology, Resources, Supervision, Writing – review & editing. MF: Conceptualization, Funding acquisition, Methodology, Resources, Supervision, Writing – review & editing.We thank AFA Insurance for funding this project and all the surgeons for their time and active participation in this study. We also thank suppliers of the surgical loupes from whom we bought the loupes for their technical support in producing, installing, and adjusting loupes for the participants.