History and present NANOS: North American Neuro-ophthalmology society (1974 INOS: International Neuro- ophthalmology society(1974) EUNOS: Europian Neuro-ophthalmology society (1993) ANOS: Asian Neuro-ophthalmology society (2002 CNOS: Chinese Neuro-ophthalmology society(2011)• NANOS: North American Neuro- ophthalmology Society (1974) • INOS: International Neuro- ophthalmology Society (1974) • EUNOS: Europian Neuro-ophthalmology Society (1993) • ANOS: Asian Neuro-ophthalmology Society (2002) • CNOS: Chinese Neuro-ophthalmology Society (2011) History and Present