JP2017136212A5 - - Google Patents

Claims (4)

An illumination optical system that irradiates the anterior segment of the eye to be examined with illumination light from a light source;
An observation optical system for obtaining a front image of the eye to be examined by receiving a return light of the illumination light from the anterior eye portion with an imaging device;
By processing the plurality of front images continuously obtained by the observation optical system, at least one of the dry spot formation position and the direction in which tear fluid moves around the dry spot, and tears in the cornea An ophthalmologic apparatus comprising: an analysis unit that detects a shape of a dry spot, which is an area where a liquid layer is destroyed, and determines a symptom of dry eye in the eye to be examined according to the detection result.   2. The analysis unit according to claim 1, wherein when the dry-spot extended linearly is detected, the analysis unit determines that the symptom is one of a symptom with a wound type and a reduced mucin type. Ophthalmic equipment. Said analyzing means, when the class circular dry spots are detected, tear-decreasing, and, among the symptoms of mucin-decreasing, and determines according to claim 1 or 2, wherein as the one of the symptoms Ophthalmic equipment. The illumination optical system irradiates the anterior eye part with a concentric ring light beam as the illumination light,
Based on the information on the ring irradiation area that is the area irradiated with the ring light beam in the front image, the analysis means includes the shape of the dry spot in each region of the cornea including the area not irradiated with the ring light beam. The ophthalmic apparatus according to any one of claims 1 to 3 , wherein a tear distribution is estimated and the temporal change is detected based on the estimation result.