Patent ID: 7736001

Claim:
An ophthalmic photographing apparatus comprising: an illumination optical unit having a first illuminating member for illuminating a subject's eye; a crystalline lens diaphragm that adjusts a range of a crystalline lens of the subject's eye where the light emitted by the first illuminating member illuminates, wherein the crystalline lens diaphragm has a ring-shaped opening; a focusing lens that adjusts a focal point; a photographing optical system including an image sensor that converts an optical image that enters via the focus lens into an electrical signal; a first unit including an index illumination optical unit, a first opening that forms a focus index, and a split prism disposed near the opening being integrated; and a driving unit that moves the first unit in a direction of the optical axis of the illuminating member together with the movement of the focus lens, wherein when the first opening is positioned in an optical axis of the first illuminating member, the index illumination optical unit has an optical axis different from that of the first illuminating member.