Funding for this research was provided by:
Vice Deanship of Scientific Research Chair, Glaucoma Research Chair in Ophthalmology, King Saud University
Received: 9 March 2020
Accepted: 24 June 2020
First Online: 8 July 2020
Ethics approval and consent to participate
: The study adhered to the tenets of the Declaration of Helsinki and had received approval from the Institutional Review Board and Research Ethics Committee of College of Medicine, King Saud University, Riyadh, Saudi Arabia (approval number #08–657). Written, informed consent was obtained from all participants before their inclusion in this study.
: Not applicable.
: The authors declare that they have no competing interests. .