1. Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
2. Tianjin Open University College of Social Education, Tianjin, China
3. Yuanfang Ophthalmology Clinic, Chengde City, Hebei Province, China. Engineering Research Center for Prevention and Control of Youth Myopia and Treatment of Pediatric Strabismus and Amblyopia, Chengde City, Hebei Province, China
4. Tianjin Eye Hospital Optometric Center, Tianjin, China