Design, methodology, and baseline of whole city-million scale children and adolescents myopia survey (CAMS) in Wenzhou, China.

"Declarations Ethics approval and consent to participateThis study complied with the Declaration of Helsinki and was approved by the Ethics Committee of the Eye Hospital of Wenzhou Medical University (2021-015-k-12). Consent for publicationNot applicable. Competing interestsJQ is the Editor-in-Chief of the journal. The other authors declare that they have no competing interests. Competing interests JQ is the Editor-in-Chief of the journal. The other authors declare that they have no competing interests."

"Funding This work was supported by the Key Research and Development Program of Zhejiang Province (Grant Numbers 2020C03036 and 2021C03102), the National Natural Science Foundation of China (Grant Numbers 31801098 and 81830027), National Key Research and Development Program for Active Health and Aging Response (Grant Number 2020YFC2008200), the Major Scientific and Technological Innovation Projects of Wen Zhou (Grant Number ZY2020013), and the Internal Fund Project of Eye Hospital of Wenzhou Medical University (Grant Numbers YJGG20181001 and KYQD20190101)."