Glaucoma, Angle-Closure

• "Fundación Conde de Valenciana" Ophthalmology Institute — Mexico City, Obrera, Mexico

• National University Hospital — Kent Ridge, Singapore

• Naris Kitnarong — Bangkok, Thailand

• Credit Valley EyeCare — Mississauga, Ontario, Canada

Not specified

• Asia — Fort Worth, Texas, United States
• Australia — Sydney, Australia

• Singapore National Eye Centre — Singapore

• Hospital Clínic of Barcelona — Barcelona, Spain
• Hospital Clínico San Carlos. Servicio de Oftalmología — Madrid, Spain
• OMIQ Research — Sabadell, Spain
• Hospital Clínico Universitario Lozano Blesa — Zaragoza, Spain

• Isfahan University of Medical Sciences — Isfahan, Iran

• Zhongshan Ophthalmic Center — Guangzhou, Guangdong, China
• Zhongshan Ophthalmic Center — Guangdong, China