• Xiaoli Zhang, Yajun Yang, Song Zhang, Han Zhang, Litong Yao, Lei Liu, Huixia Li, Xiaoguang Zhang, Shixuan Guo, Lao Qi, Lili Zhou, Jie She, Bin Zhao, Xiaoyan Bian, and Guisen Zhang.
• Department of Cataract, Baotou Chaoju Eye Hospital, Baotou.
• Medicine (Baltimore). 2021 Mar 12; 100 (10): e24670e24670.

AbstractTo report the rationale, design, and baseline demographic characteristics of TuYou-County Pediatric Eye study, which mainly aimed to determine the retinal microvascular changes with optical coherence tomography angiography (OCTA) and its association with eye abnormalities in school aged children and adolescents at suburban location in Northern China.TuYou-County Pediatric Eye study was a school-based survey conducted in TuYou-County. Multi-ethnic (Mongol, Han, and Hui) participants will be followed up for 5 years. Standardized ophthalmological examinations include visual acuity, ocular biometry, retinal photography, and OCTA. A questionnaire survey was conducted to collect variables regarding to eye disease such as parental history of eye diseases, near work, outdoor activities, living and eating habits, etc.After sampling, 687 participants were eligible for investigation, and 20 students did not attend the investigation, living 667 (response rate, 97.1%) students completed questionnaires and all ocular examinations. The average age of all participants was 14.9 ± 5.11.TYPE study is the first large-scale school-based multi-ethnic survey in suburban site of Northern China. Continuous identification of retinal microvascular changes with eye diseases will provide new insights into the control related diseases in school-age children and adolescents.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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