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.