Correspondence

Affiliations

• ¹ Department of Ophthalmology, Christchurch Hospital, Canterbury District Health Board, Christchurch, New Zealand.
• ² Singapore Eye Research Institute, Singapore National Eye Centre, Duke-NUS Medical School, Singapore.
• ³ Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore.
• ⁴ Department of Ophthalmology, Edward S. Harkness Eye Institute, Columbia College of Physicians and Surgeons, New York.
• ⁵ East Bay Retina Consultants, Inc, Oakland, California.
• ⁶ Department of Ophthalmology, University of California, San Francisco, San Francisco, California.