Accornero N, Capozza M, Rinalduzzi S, De Feo A, Filligoi G C, Capitano L
Dipartimento di Scienze Neurologiche, University of Rome La Sapienza.
Stud Health Technol Inform. 1997;43 Pt A:89-93.
Color visual field analysis has proven highly sensitive for early visual impairments diagnosis in M. S., yet it has never attained widespread popularity usually because the procedure is difficult to standardize, the devices are costly, and the test is fatiguing. We propose a computerized procedure running on standard PC, cost effective, clonable, and easy handled. 264 colored patches subtending 1 degree angle of vision, with selected hues and low saturation levels are sequentially and randomly displayed on gray equiluminous background of the PC screen subtending 24 degrees x 40 degrees angle of vision. The subject is requested to press a switch at the perception of the stimulus. The output provides colored maps with quantitative informations. Comparison between normals and a selected population of Patients with Multiple Sclerosis and with Glaucoma without luminance visual field defects, showed high statistical difference.
颜色视野分析已被证明对多发性硬化症早期视力损害的诊断具有高度敏感性，但它从未得到广泛应用，通常是因为该程序难以标准化、设备昂贵且测试令人疲劳。我们提出了一种在标准个人电脑上运行的计算机化程序，具有成本效益、可克隆且易于操作。264个视角为1度的彩色斑块，具有选定的色调和低饱和度水平，依次随机显示在视角为24度×40度的电脑屏幕的灰色等亮度背景上。要求受试者在感知到刺激时按下开关。输出结果提供了带有定量信息的彩色地图。正常人与选定的一组无亮度视野缺陷的多发性硬化症患者和青光眼患者之间的比较显示出高度统计学差异。
