Yagasaki K, Awaya S, Jacobson S G
Department of Ophthalmology, Nagoya University School of Medicine, Japan.
Nippon Ganka Gakkai Zasshi. 1990 Dec;94(12):1162-8.
A modified automated projection static perimeter which can measure thresholds with lights of three different wavelengths in light-adapted as well as in dark adapted state is described. With the modifications described, this instrument can evaluate relative states of rod and cone mechanisms respectively within the visual field range of 72 degrees. These modifications also enable dark-adapted two-color static perimetry quantitatively across the visual field including profile measurement. Results obtained from normal subjects with these techniques permit assessment of the sensitivity in dark and light and also determination of photoreceptor mediation in the dark. These techniques can evaluate rod and cone dysfunctions separately unlike other retinal function tests, and may show that different mechanisms even in one clinical entity of retinal dystrophies, as well as retinal degenerations, can be demonstrated.
本文描述了一种经过改良的自动投射静态视野计，它能够在明适应和暗适应状态下，使用三种不同波长的光来测量阈值。通过所述的改良，该仪器可在72度视野范围内分别评估视杆和视锥机制的相对状态。这些改良还能实现暗适应双色静态视野定量检查，包括全视野轮廓测量。使用这些技术从正常受试者获得的结果，可评估明暗环境下的敏感度，并确定暗环境下光感受器的介导作用。与其他视网膜功能测试不同，这些技术可分别评估视杆和视锥功能障碍，并且可能表明，即使在视网膜营养不良和视网膜变性的同一临床实体中，也能证明存在不同的机制。
