Funding for this research was provided by:
National Major Science and Technology Projects of China (2018ZX10201001)
Received: 15 July 2020
Accepted: 14 January 2021
First Online: 24 February 2021
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of the Eye Hospital of Wenzhou Medical University (number: KYK  23) and adhered to the tenets of the Declaration of Helsinki. All subjects provided written informed consent at the time of sample collection.
: Not applicable.
: The authors declare that they have no competing interests.