Patent ID: 7506978
Filing Date: 2009-03-24
Classification: A61B

Abstract:
1. A retinal function measurement apparatus comprising: a first image obtaining optical system that obtains a tomographic image of a fundus of an examiner's eye by optical coherence tomography using low coherent light, the first image obtaining optical system including a light source which emits the low coherent light, a scanning unit which scans measurement light being a part of the emitted low coherent light on the fundus, an interference optical system for synthesizing the measurement light reflected from the fundus and reference light being a part of the emitted low coherent light to interfere, and a first photodetector which photo-receives the interfered light; a stimulating light irradiation optical system that performs irradiation of stimulating light, having a visible wavelength capable of stimulating a retina, onto the fundus; a fixation target presenting optical system that performs fixation of the eye; a memory that stores an obtained tomographic image; a control unit that controls the first image obtaining optical system to obtain a first tomographic image of the fundus before the irradiation of the stimulating light onto the fundus and stores the first tomographic image in the memory, controls the stimulating light irradiation optical system to perform the irradiation of the stimulating light onto the fundus, controls the first image obtaining optical system to obtain a second tomographic image of the fundus after the irradiation of the stimulating light onto the fundus and stores the second tomographic image in the memory; and an image processing unit that obtains information on a retinal function by performing processing on the first tomographic image before the irradiation of the simulating light and the second tomographic image after the irradiation of the stimulating light, which are stored in the memory.