This visual function test system includes an analyzing means which obtains at least two boundaries by obtaining a boundary between a region in which a subject has visibility and a region in which the subject does not have visibility, for each combination of stimulus values of color stimuli of a visual target, in a coordinate system representing a correlation between a luminance contrast value of the luminance of a part of interest and the luminance of a background part, and an average value of the luminance of an index including the part of interest and the background part.具有：在表示注目部分的輝度與背景部分的輝度間的輝度對比值、與包含注目部分及背景部分的指標的輝度平均值之間的相關性的座標系中，在每個視標的色刺激的刺激值的組合中，藉由求出被驗者具有辨識性的區域與不具有辨識性的區域間的臨界，來求出至少2個前述臨界的分析機構。
