Patent ID: 7621639

Claim:
A method of developing a visual processing profile for a person, comprising: displaying a first filtered visual stimulus to a first portion of a field of view of at least one of the person's eyes; allowing the person to respond to the first filtered visual stimulus; measuring the person's response to the first filtered visual stimulus in the first portion of the person's field of view; displaying a second filtered visual stimulus to a second portion of the field of view of the at least one of the person's eyes; allowing the person to respond to the second filtered visual stimulus; measuring the person's response to the second filtered visual stimulus in the second portion of the person's field of view; displaying a third filtered visual stimulus to the first portion of the field of view using a second, darker filter; allowing the person to respond to the third filtered visual stimulus; measuring the person's response to the third filtered visual stimulus in the first portion of the person's field of view; displaying a fourth filtered visual stimulus to the second portion of the field of view using the second, darker filter; allowing the person to respond to the fourth filtered visual stimulus; measuring the person's response to the fourth filtered visual stimulus in the second portion of the person's field of view; determining the level of retinal ganglion function of a first retinal ganglion subtype for the person based on the person's measured responses to at least the first, second, third, and fourth filtered visual stimuli; determining the level of retinal ganglion function for at least a second retinal ganglion subtype; and determining the visual processing profile for the person based on a ratio of the determined levels of retinal ganglion function for at least the first and second retinal ganglion subtypes.