| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a perimeter capable of shortening inspection time and reducing burdens on a tester and a subject. <P>SOLUTION: The perimeter is provided with a visual target presenting means capable of changing the brightness of a visual target to be presented to the visual field of an eye to be tested and moving the presenting position of the visual target, measures a dynamic visual field by moving the visual target of fixed brightness from the periphery of the visual field of the eye to be tested to the center and making the subject view it and respond, and obtains isopters connecting the points of the same sensitivity. The perimeter is provided with an arithmetic control means for deciding the start point of visual target presentation for searching an isolated scotoma present between the adjacent isopters, which specifies the recess of the isopter on the basis of an isopter shape and decides the start point of the visual target presentation on the basis of an interval between the specified recess shape and the isopter on the outer side. <P>COPYRIGHT: (C)2007,JPO&INPIT |
