Department of Ophthalmology (C.B.N., M.M.S.), Mayo Clinic, Rochester, MN; Atwater Eye Care Center (S.D.), School of Optometry, Indiana University, Bloomington, IN; and Department of Quantitative Health Sciences (D.O.H.), Mayo Clinic, Jacksonville, FL.

Address correspondence to Cherie B. Nau, O.D., Department of Ophthalmology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905; e-mail: [email protected]

The authors have no funding or conflicts of interest to disclose.

Presented as a poster at the American Academy of Optometry 96th Annual Meeting, Chicago, IL, October 11–14, 2017. Portions of this manuscript have been published in abstract form: Optom Vis Sci 2017; 94:E-abstract 175002.