Systems and methods for improved ease and accuracy of gaze tracking

A method for performing a visual field test on a subject using a perimeter, wherein the subject has been instructed to fixate their gaze on a specified location throughout all or a portion of the test, said method comprising:

• displaying a series of test stimuli to the subject;
• collecting responses to the stimuli from the subject;
• analyzing the responses to determine the sensitivity of the subject's visual field;
• with a camera, collecting information on the gaze direction of the subject during the displaying of stimuli;
• determining deviations in the subject's fixation from the specified location using the collected gaze information, wherein characteristics of the subject's gaze associated with fixation on the specified location are determined from the gaze information and wherein the determination assumes that the majority of the responses collected during the visual field test occurred when the subject was fixated on the specified location and generating a calibration vector based on that assumption and wherein the deviation in the gaze direction from the specified location is determined by comparing the gaze direction information associated with each stimuli to the calibration vector;
• and
• for any response to a stimuli wherein the determined deviation in gaze direction exceeds a threshold, performing one of the following steps:
• (a) disregarding the response;
• (b) flagging the response to the clinician;
• or
• (c) reassigning the response to a different location.