Patent ID: 7325925

Claim:
Perimeter for perimetry on an eye to be examined by presenting a stimulus at a predetermined coordinate position of a first visual field coordinate system which is set on a visual field dome, comprising: a memory for storing a fundus image of said eye to be examined; means to control display for reading said fundus image and displaying said fundus image on a monitor; means to set coordinate for setting a second visual field coordinate system wherein a macula lutea portion of said fundus image which is displayed on said monitor is an origin on said fundus image displayed on said monitor; means for provisionally determining blind spot coordinate, for provisionally determining a blind spot position on said fundus image on said second visual field coordinate system; means to search blind spot for searching a coordinate position of a blind spot of said eye to be examined on said first visual field coordinate system by presenting said stimulus to said eye to be examined on said visual field dome; means to change scale for changing a scale of said second visual field coordinate system so as to correspond said coordinate value of said blind spot of said eye to be examined on said first visual field coordinate system which is obtained by said blind spot search means and said coordinate value of said blind spot of said fundus image on said second visual field coordinate system with each other; and means to conduct perimetry for conducting a perimetry on said eye to be examined by presenting said stimulus on said visual field dome at a position on said first visual field coordinate system having the same coordinate value as one on said second coordinate system of a predetermined test point on said fundus image.