Article History
Received: 17 December 2020
Accepted: 28 September 2021
First Online: 13 October 2021
Declarations
:
: This study was approved by the ethics committee of Qingdao Eye Hospital (2019-15) and strictly adhered to the guidelines of the Declaration of Helsinki. Written informed consent was obtained from all participants before their inclusion in this study. There was no participant under the age of 16.
: Written informed consent for publication of identifying images or other personal or clinical details was obtained from all of the participants. There was no participant under the age of 18.
: The authors declare that they have no competing interests.