Development for Tablet-Based Perimeter Using Temporal Characteristics of Saccadic Durations.

Visual field examination is essential for the early detection of glaucoma. The purpose of this study was to construct a visual field inspection system using a tablet terminal for early detection of glaucoma. In this study, the presentation time of numbers used for visual recognition was optimized to construct a visual field inspection system using a tablet terminal. The optimization was based on human optical characteristics. That is, experiments clarified the relationship between the viewing angle and the presentation time of numbers, and the optimal presentation time at the presentation position of each target was obtained. Next, to evaluate the effectiveness of the optimized system, a visual field test was performed using a tablet-type perimeter to incorporate the system, and the accuracy of Marriott blind spot detection was obtained as a substitute index for the visual field abnormality. As a result of the evaluation experiment, the detection rate of Marriott blind spots was 66.7%. In this paper, we discuss the detection rate of Marriott blind spots and individual differences. In conclusion, it was shown that the accuracy of visual field measurement was improved by using the perimeter that incorporates the proposed system.