Funding for this research was provided by:
Ministry of Education (2017R1A1A2A10000681)
Ministry of Health & Welfare, Republic of Korea (HI17C0659)
Received: 26 April 2018
Accepted: 1 February 2019
First Online: 18 February 2019
Ethics approval and consent to participate
: This retrospective study adhered to the tenets of the Declaration of Helsinki and received institutional review board (IRB) approval from Seoul St. Mary’s Hospital for the analysis of their medical records. The need for consent was waived by IRB (name of IRB: CMC IRB).
: Not applicable.
: HHS is a member of the editorial board (Associate Editor) of BMC ophthalmology. The other authors declare that they have no competing interests. The authors declare that they have no financial competing interests.
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