An optical instrument for observing the iris corneal region, and a method for performing at least one of measurement and evaluation of the iris cornea region

摘要

The present invention relates to an optical instrument suitable for observing at least a part of the iris corneal annular region of the eye (100). The optical instrument comprises at least one illumination light beam for at least one illumination light beam directed to a corresponding ones of the plurality of sub-regions included in the iris cornea annular region of the eye (100) A lighting assembly (201 A, 201 B) having a plurality of illumination light paths (251 A, 251 B) and an illumination assembly (201 A, 201 B) having a plurality of illumination light paths An imaging assembly (202A, 202B) having a plurality of imaging light paths (252A, 252B) for at least one imaging light beam coming from a corresponding one of the plurality of sub-. The front optical assembly (203) has a front face (204) configured to be disposed on the side close to the front face of the eye (100) and a rear face (205) configured to be arranged on a side far from the front face A central portion (206) disposed between the front surface (204) and the rear surface (205), and a side portion (207) disposed around the central portion (206) ing. The front optical assembly (203) is stationary. All the imaging optical paths (252 A, 252 B) pass through the central portion (206) between the front surface (204) and the rear surface (205). The side portion (207) includes a reflection element (208) surrounding the central portion (206) and reflecting light along all the imaging optical paths (252 A, 252 B).(FIG.