1 Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts; Department of Ophthalmology, Leiden University Medical Center, Leiden, the Netherlands; Discipline of Ophthalmology and Visual Sciences, Faculty of Health and Medical Sciences, Adelaide Medical School, University of Adelaide, Adelaide, Australia.
2 Department of Ophthalmology, Government Medical College and Hospital, Chandigarh, India.
3 Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts.
4 Eye Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates; Department of Ophthalmology, University of Maastricht, Maastricht, the Netherlands.
5 Stein Eye Institute, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California. Electronic address: ETsui@mednet.ucla.edu.