Article History
Received: 25 October 2017
Accepted: 16 March 2018
First Online: 23 March 2018
Ethics approval and consent to participate
: The study protocol adhered to the tenets of the Declaration of Helsinki and and was approved by the Ethical Review Committee of Guangzhou Aier Eye Hospital. All the patients signed the consent form after a fullest explanation of the purpose and procedures of the study.
: The consents for publication from all the patients were obtained after a detailed explanation of the purpose and procedures of the project.
: The authors declare that they have no competing interests.
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