A method for administering a low luminance dysfunction vision test to a patient using a computer, by displaying, a first character at a first acuity level on a display at a first luminance level, receiving an input signal from the patient indicating whether the patient recognizes the first character, displaying a second character at a second acuity level and the first luminance level, receiving a second input signal from the patient indicating whether the patient recognizes the second character, calculating a first score using the first and second input signals, which score corresponds to a first visual acuity at the first luminance level, displaying a third character at a third acuity level and a second luminance level, which luminance level replicates a specific low luminance real environmental condition, receiving a third input signal from the patient indicating whether the patient recognizes the third character, displaying a fourth character at a fourth acuity level and the second luminance level, receiving a fourth input signal from the patient indicating whether the patient recognizes the fourth character, calculating a second score based on the third and fourth input signals, and calculating a degree of low luminance dysfunction by calculating a third score representing a difference between the first and second scores.
