Patent ID: 8585203

Claim:
An ocular fundus observation apparatus comprising: an illumination optical system configured to illuminate an ocular fundus of an eye to be examined; an observation photographing optical system configured to observe and photograph the ocular fundus illuminated by the illumination optical system; an alignment index unit which is configured to project an alignment index on an anterior eye portion of the eye to be examined in order to adjust a position relation between the observation photographing optical system and the eye to be examined, and is disposed to cause an image of a luminescent spot of the alignment index to be formed when an alignment is aligned with the anterior eye portion by shifting the observation photographing optical system; an infrared index light source configured to emit near infrared light and a visible index light source configured to emit visible light which are provided on the alignment index unit; an index light source change unit configured to change these index light sources; an index projection unit configured to cause the index light source to emit light; and a shift control unit configured to control a position of the index projection unit in a direction of an optical axis, wherein a position of the luminescent spot of the index projection unit is changed by the shift control unit according to selection of the index light source of the index light source change unit.