Funding for this research was provided by:
Health and Family Planning Commission of Zhejiang Province (2016KYB204)
Wenzhou Municipal Science and Technology Bureau (Y20160149)
Article History
Received: 7 February 2018
Accepted: 24 October 2018
First Online: 3 November 2018
Ethics approval and consent to participate
: The study was approved by the human subjects review board at the Eye Hospital of Wenzhou Medical University. Each subject signed a consent form and was treated in accordance with the principles of the Declaration of Helsinki.
: Not Applicable.
: The authors declare that they have no competing interests.
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