Funding for this research was provided by:
Grant for Key Disciplinary Project of Clinical Medicine under the Guangdong High-level University Development Program (002-18119101)
Shantou Science and Technology Program (170829231930502)
Research Grant of Joint Shantou International Eye Center (2012-18)
Article History
Received: 8 January 2020
Revised: 28 February 2020
Accepted: 1 April 2020
First Online: 20 April 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.All procedures performed in studies involving human participants were in accordance with the ethical standards of the Joint Shantou International Eye Center and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Because of the retrospective nature of the study, informed consent was waived by the ethical committee of Joint Shantou International Eye Center.