Factors Influencing the Transition From Physiological Hyperopia to Myopia in Children: Protocol for a Prospective Nested Case-Control Study

Huaying Xu   ^{1 *} , MD ;   Jianing Pu   ^{2 *} , MD ;   Shimeng Bian   ¹ , MD ;   Xuejing Mi   ¹ , MD ;   Zhen Zhou   ³ , MD ;   Wei Chen   ² , MD ;   Yonghong Jiao   ¹ , MD

¹ Department of Ophthalmology, Beijing Tongren Eye Center, Capital Medical University, Beijing Tongren Hospital, Beijing, China

² Department of Ophthalmology, Maternal and Child Health Hospital of Haidian District, Beijing, China

³ School of Biomedical Engineering, Capital Medical University, Beijing, China

*these authors contributed equally