Am J Ophthalmol 2020 10 2;218:279-287. Epub 2020 Jul 2.
Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts, USA; Department of Ophthalmology, Massachusetts Eye and Ear, Boston, Massachusetts, USA; Myung Sung Christian Medical Center Eye Unit, Myung Sung General Hospital and Myung Sung Medical School, Addis Ababa, Ethiopia. Electronic address: