[Page 13] Correspondence: Conflict of Interest: The authors report no conflicts of interest. Irina Effendi-Tenang, MBBS Contributions: All authors contributed equally. University of Malaya Eye Research Centre Accepted for Publication: March 5, 2020 University of Malaya Medical Centre This work is licensed under a Creative Commons Attribution 59100 Kuala Lampur, Malaysia Non-Commercial 3.0 License (CC BY-NC 3.0). E-mail: irina@ummc.edu.my ©Copyright Effendi-Tenang, et al., 2020. Phone: (353) 86-360-1361 Licensee Ophthoscience Publishers, USA [Page 14] [Page 15] [Page 16] [Page 17]