Patent ID: 6411839
Filing Date: 2002-06-25
Classification: A61B

Abstract:
Fundus blood vessel examination apparatus comprising:an irradiation optical system for irradiating a fundus blood vessel with measurement light; light-receiving means for receiving scattered light of the measurement light from the fundus blood vessel; measurement means for detecting predetermined information from the fundus blood vessel on the basis of information from said light-receiving means; direction detection means for detecting a direction in which a bloodstream flows in the fundus blood vessel; irradiation position changing means for changing the irradiation position of the measurement light on the fundus blood vessel driven by drive means; and control means for controlling said irradiation position changing means to adjust the irradiation position of the measurement light on the fundus blood vessel by the drive means on the basis of the running direction information detected by said direction detection means to move the irradiation position of the measurement light along the direction in which the fundus blood vessel runs.