To provide a fixation line measuring method capable of performing a high-precision fixation line measurement by using a simple structure. Using a pair of measuring glasses provided with glasses reference points at bilaterally symmetrical positions, a 3D camera set up at a specific position, a light source, and an analytic computer for allowing the analytic computer to perform: a process of allowing an examinee who wears a pair of measuring glasses to gaze at a particular fixation point and allowing the light source to emit light, and photographing the glasses reference points and corneal reflex points via the 3D camera a process of analyzing positions of the glasses reference points and the corneal reflex points according to the photographed images a process of calculating pupil center positions of the examinee according to the analyzed corneal reflex points and a process of obtaining a fixation line by calculating a line which passes through the calculated pupil center and the fixation point gazed by the examinee.提供一種能夠藉由簡易之構成來進行高精確度之注視線測定的注視線測定方法。使用於左右對稱位置處設置有眼鏡基準點之測定用眼鏡、和設置於特定的位置處之立體攝影機、和光源、以及解析用電腦,並使解析用電腦,實行:使裝著了測定用眼鏡之被驗者注視特定之注視點並使光源發光,而藉由立體攝影機來對於眼鏡基準點以及角膜反射點進行攝影之工程;和根據所攝影了的影像,來對於眼鏡基準點以及角膜反射點之位置進行解析之工程;和根據解析出之角膜反射點,來算出被驗者的瞳孔中心位置之工程;和將通過所算出之瞳孔中心和使被驗者作了注視的注視點之直線,作為注視線而計算出來之工程。2‧‧‧測定用眼鏡3‧‧‧立體攝影裝置31‧‧‧立體攝影機32‧‧‧光源33‧‧‧攝影裝置框架4‧‧‧解析用電腦5‧‧‧被驗者61‧‧‧桌62‧‧‧椅子T2‧‧‧遠方注視點
