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    • 1. 发明公开
    • Method and apparatus for measuring vision blockage resulting from glare
    • 用于测量由视力受损眩光的水平的方法和装置。
    • EP0236081A2
    • 1987-09-09
    • EP87301720.6
    • 1987-02-26
    • Taylor, Tim CannonMcAllister, John Albert
    • Taylor, Tim CannonMcAllister, John Albert
    • A61B3/02A61B3/06
    • A61B3/032A61B3/063
    • According to the method, a glare-inducing light (15) is shined in the subject's eyes. A series of visually-perceivable patterns of varying apparent sizes, each pattern arranged around the light, is presented to the subject. Each pattern comprises a sequence of alternating light and dark segments (45,46). The pattern is preferably in the form of a broken outline of a circle (40) centered on a window (30) through which the glare-inducing light passes.
      For each pattern presented, the subject is asked to indicate which if any dark segments (46) he perceives. The subject may also be asked how many dark segments (46) he sees and in what locations.
      The smallest pattern whose dark segments (46) can be perceived by the subject indicates the size of the subject's glare-induced vision blockage.
    • 。根据该方法,眩光诱导光(15)照射到被检体的眼睛。 一系列不同表观尺寸的视觉可感知的模式,周围的光布置在每个图案中,呈现给受试者。 每个图案包括交替的亮和暗的段(45,46)的序列。 所述图案优选地在圆(40)的虚线轮廓的形式为中心,通过该眩光诱导光通过的窗口(30)上。 对于每个呈现模式,对象被要求指出哪位如果有深段(46)他察觉。 因此,主题可能会问他有多少暗段(46)看到在什么位置。 最小图案谁的暗段(46)可通过所述受试者被视为指示受试者的眩光引起的视力堵塞的大小。