Ophthalmometric apparatus for generating an image of a selection and a surface of an eyeground of a subject

An ophthalmometric apparatus for generating an image of a section and a surface of an eyeground of an eye of a subject having an ocular lens with a center portion and a peripheral portion, comprising:

• an interferometer optical system having
• a first light source which emits a first light beam having a short coherence length,
• a reference reflector, and
• a coherent probe optical path for leading the first beam of light to the eyeground and to the reference reflector, the reference reflector being movable along the coherent probe optical path,
• a interference signal forming device for forming an interference signal with the first light from the coherent optical path;
• and
• an eyeground image optical system having
• a second light source which emits a second light beam for illuminating the eyeground, the second light beam being reflected from the eyeground, and an eyeground image signal forming device for forming an eyeground image signal from the reflected second beam of light.

An ophthalmometric apparatus for generating an image of a section and a surface of an eyeground of an eye of a subject having an ocular lens with a central portion and a peripheral portion, comprising:

• a first light source which emits a first light beam having a short coherence length,
• a second light source which emits a second light beam,
• a first optical system leading the first light beam and the second light beam to the eyeground, and receiving the first light beam and the second light beam after being reflected from the eyeground,
• a reference reflector,
• a second optical system having an optical axis for leading the first light beam to the reference reflector, the first light beam being reflected off the reference reflector, the reference reflector being movable along the optical axis of the second optical system,
• an interference forming signal device for forming an interference signal with the first light beam reflected from the eyeground and the first light beam reflected from the reference reflector, and
• an eyeground image signal forming device for forming an eyeground image signal with the second light beam reflected from the eyeground.

An ophthalmometric apparatus for generating an image of a section and a surface of an eyeground of an eye of a subject having an ocular lens with a center region and a peripheral region comprising:

• an interference optical system having a first light source which emits a first light beam having a short coherence length,
• a reference reflector,
• a measuring optical system for projecting the first light beam to the eyeground through the center region of the ocular lens,
• a reference optical system having an optical axis for projecting the first light beam to the reference reflector, the reference reflector being movable along the optical axis of the reference optical system, and
• an interference signal forming device for forming an interference signal with the first light from the measuring optical system and from the reference optical system;
• an eyeground image optical system having
• a second light source which emits a second light beam for illuminating the eyeground of the subject,
• an illuminating optical system for illuminating the eyeground of the subject through the peripheral region of the ocular lens, and
• an eyeground image signal forming device for forming an eyeground image signal with the second light reflected from the eyeground.

An ophthalmometric apparatus for generating an image of a section and a surface of an eyeground of an eye of a subject having an ocular lens with a central region and a peripheral region, comprising:

• an interferometer optical system having
• a first light source which emits a first light beam having a short coherence length,
• a reference reflector,
• a coherent probe optical system having an optical axis for leading the first light to the eyeground through the center region of the ocular lens and to the reference reflector, the reference reflector being movable along the optical axis of the coherent probe optical system, and
• a interference signal forming device for forming an interference signal with the first light through the coherent probe optical system;
• and
• an eyeground image optical system having
• a second light source which emits a second light beam for illuminating the eyeground,
• an illuminating optical system for illuminating the eyeground through the peripheral region of the ocular lens, and
• an eyeground image signal forming device for forming an eyeground image signal from the reflected second beam of light.