1. Department of Ophthalmology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok
2. Center of Excellence in Glaucoma, Chulalongkorn University, Bangkok
3. Surin Hospital and Surin Medical Education Center, School of Ophthalmology, Suranaree University of Technology, Surin, Thailand
4. Department of Medicine, Mayo Clinic, Rochester, MN, USA
5. Glaucoma Center of San Francisco, San Francisco, CA, USA