Hong Kong Paediatric Ophthalmology and Strabismus Group (HKPOSG) was established on 2016. HKPOSG is a group of ophthalmologists in Hong Kong with special interest in paediatric ophthalmology and strabismus. We aim to 1)improve the children eye care in Hong Kong; and 2)promote academic exchange and research collaborations both locally and internationally.

The IOA is the world's largest orthoptic association and serves as the global advocate for orthoptic learning, research and professional excellence. The International Orthoptic Association serves its members by: • developing the capacities of orthoptic professionals • providing standards of excellence in specialized eye care • setting standards for clinical practice and education based on research with the aim of promoting continued quality improvement for the benefit of their patients.

The aims of the association are: To disseminate knowledge on all sensory and motor aspects of strabismus and other disorders of ocular motility. To foster clinical and experimental research To encourage and support countries wishing to set up organizations for the study and treatment of strabismus and associated sensory disorders. To create, as far as possible, a common terminology and a standardization of diagnostic and therapeutic procedures.

The IOS is the Israeli Orthoptic Society and serves as the Israeli advocate for orthoptic learning, research and professional excellence. The Israeli Orthoptic Society serves its members by: • developing the capacities of orthoptic professionals • providing standards of excellence in specialized eye care • setting standards for clinical practice and education based on research with the aim of promoting continued quality improvement for the benefit of their patients. 

Our society was founded in 1972. Those purposes are to improve, promote orthoptic development in academic technique. Therefore we plan the medical spread and improvement for the people, contribute health maintenance and growth. The main works are eye check-up, research, public relations, and support for visual disabled. We provide meeting, workshop, training course, educational works so that the member can furnish high-quality medical care to patients.

JASA was established in 1964 and the members are consisted of ophthalmologists and certified orthoptists. The goals are to activate both basic and clinical investigations concerning the development of vision, binocularity of children, and binocular dysfunction such as diplopia in adults cooperated with the Japanese Association of Pediatric Ophthalmology. JASA has contributed to the early detection and treatment for amblyopia in children through the screening program at 3 years old.