Beijing Tongren Eye Center (Y.Z.), Beijing KEY Laboratory of Ophthalmology and Visual Science; and Beijing Tongren Hospital (C.-B.Z.), Capital Medical University, Beijing, China.

Address correspondence to Chang-Bin Zhai, MD, Beijing Tongren Eye Center, Beijing Tongren Hospital, No. 1 Dongjiaomin Xiang, Dongcheng District, Beijing 100730, China; e-mail: [email protected]

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

Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Web site (www.eyeandcontactlensjournal.com).

The data sets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

All authors contributed toward concept development, drafting, or revising the article, gave final approval of the version to be published, and agree to be accountable for all aspects of the work.