1 From the Baylor College of Medicine (Q.W.), Houston, Texas, USA.
2 Singapore Eye Research Institute (D.M.), Singapore National Eye Centre and Duke-NUS Medical School, Singapore.
3 Department of Ophthalmology (A.G.L.), Blanton Eye Institute, Houston Methodist Hospital, Houston, Texas, USA; Departments of Ophthalmology, Neurology, and Neurosurgery (A.G.L.), Weill Cornell Medicine, New York, New York, USA; Department of Ophthalmology (A.G.L.), University of Texas Medical Branch, Galveston, Texas, USA; University of Texas MD Anderson Cancer Center (A.G.L.), Houston, Texas, USA; Texas A&M College of Medicine (A.G.L.), Bryan, Texas, USA; Department of Ophthalmology (A.G.L.), The University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA. Electronic address: aglee@houstonmethodist.org.