基于光纤传导的青光眼快速筛选分析仪

摘要

青光眼的筛查应遵循简易、快捷、有效的原则,本文研发一种高精度快速视野筛选分析仪以满足青光眼大规模筛查需要.该分析仪各个刺激点亮度均匀度好,采用光纤传导分光技术,使得视野刺激点之间亮度差小于5％；刺激点亮度精度高,采用单片机脉宽调制方式,使得亮度精度达到0.001 Nit,结合四点视野筛查理论,可进行快速视野检测,完成对青光眼的早期诊断.%Glaucoma screening should follow the simple, fast and effective principles. A rapid high-precision screening analyzer is developed to meet the needs of large-scale screening. Intensity uniformity about each stimulus point of the analyzer is good. By using fiber conduction technology, intensity difference between the stimulus points of screen is less than 5%. Moreover, the stimulation point intensity has high precision. By using single chip pulse width modulation, the intensity accuracy reaches 0.001 Nit. Combined with four-point theory for rapid screening, the early diagnosis of glaucoma has been completed.