Abstract An ophthalmic measuring device is used for measuring blood flow at a fundus to be subjected to ophthalmic examination. The device includes and illumination system for illuminating the fundus to be examined, a projection system for irradiating a predetermined area of the fundus with a measuring laser beam, a detection device for detecting a reflected measuring laser beam reflected from the irradiated area, a storage device for storing signals obtained by the detection device, and an arithmetic processing section for arithmetically processing blood flow in a blood vessel of the fundus based on the stored signals. The device has the capability of indicating an area to be detected on the fundus. The device allows a photograph of the fundus to be taken, superimposed on an image of the indicated area, substantially simultaneously with the storage of the signals in the storage device.
An ophthalmic measuring device, comprising: an illumination system means for illuminating a measuring area of a fundus to be examined; an irradiating system means for irradiating with a measuring laser beam a predetermined area of the fundus to be examined; a measuring area indicating system means for projecting a pattern image to indicate the measuring area; fundus image detection means for detecting a reflected measuring laser beam reflected from the irradiated area of the fundus said fundus image detection means providing fundus image detection signals; storage means for storing said signals obtained from the fundus image detection means; an arithmetic processing section means for arithmetically processing information related to blood flow in a blood vessel of the fundus, on the basis of the signals stored in the storage means; and a control system means for controlling the device so that the fundus image detection means provides images of the fundus together with the pattern image formed thereon.
Claim 2
Dependent Claim
157 words
An ophthalmic measuring device, comprising: an illumination system means for illuminating a measuring area of a fundus to be examined; an irradiating system means for irradiating with a measuring laser beam a predetermined area of the fundus to be examined; a measuring area indicating system means for projecting a pattern image to indicate the measuring area; fundus image detection means for detecting a reflected measuring laser beam reflected from the irradiated area of the fundus said fundus image detection means providing fundus image detection signals; storage means for storing said signals obtained from the fundus image detection means; an arithmetic processing section means for arithmetically processing information related to blood flow in a blood vessel of the fundus, on the basis of the signals stored in the storage means; and a control system means for controlling the device so that the fundus image detection means provides images of the fundus together with the pattern image formed thereon.