Ophthalmologic apparatus

1. An ophthalmologic apparatus comprising:

an objective lens;

a data acquisition system configured to acquire data of a subject's eye optically via the objective lens; and

an anterior segment photographing system that includes a pair of optical systems for substantially simultaneously photographing an anterior segment of the subject's eye from different directions via the objective lens, each of the pair of optical systems including

a light flux limiting element that limits light flux incident through the objective lens,

a lens that guides the light flux passing through the light flux limiting element to a photographing apparatus, and

a relay optical system configured to form a point optically conjugate with the corresponding light flux limiting element between the objective lens and the corresponding light flux limiting element.

2. The ophthalmologic apparatus of claim 1 , further comprising:

an optical path coupling member configured to combine an optical path of the data acquisition system with optical paths of the pair of optical systems, wherein

the point of at least one of the pair of optical systems is located in the vicinity of an optical path coupling surface of the optical path coupling member.

3. The ophthalmologic apparatus of claim 1 , further comprising:

an optical path selecting member for selectively guiding the optical paths of the pair of optical systems to an imaging surface of the photographing apparatus.

4. The ophthalmologic apparatus of claim 1 , further comprising:

an anterior segment illumination system configured to illuminate the anterior segment via the objective lens.

5. The ophthalmologic apparatus of claim 1 , further comprising:

a position specifying part that specifies a three-dimensional position of the subject's eye based on a pair of photograph images obtained substantially simultaneously by the pair of optical systems.

6. The ophthalmologic apparatus of claim 1 , further comprising:

a moving mechanism that moves the objective lens and the data acquisition system at least; and

a controller configured to control the moving mechanism based on the pair of photograph images obtained substantially simultaneously by the pair of optical systems.

7. The ophthalmologic apparatus of claim 1 , wherein the data acquisition system includes

a scan optical system configured to scan the subject's eye with light via the objective lens; and

an image forming part configured to form an image of the subject's eye based on data acquired by the scan optical system.