Chinese Ophthalmological Society

Founded in Shanghai in 1937, the COS under the CMA is China’s premier academic ophthalmic body. It promotes clinical, research, educational, and global progress via annual meetings and a journal. Prof. Xinghuai Sun became President in Feb 2026. The COS Congress has been held since 1965, initially every four years then every two years from 1996 and annually since 2005.

The mission of COS is to promote the progress of the science of ophthalmology in China, the internationalization of Chinese ophthalmology and the availability of quality eye care to patients. To achieve these goals, COS actively works with the Sight Project of Millions of Cataract Patients and the VISION 2020 global initiative to support blindness prevention and actively advance continuing education, residency training and evidence-based guidelines in eye care.