Abstract: A pattern VEP system for screening for glaucoma and other optic nerve related diseases/deficiencies. The system combines high contrast and low contrast testing. The low contrast testing allows for highly sensitive glaucoma testing and the high contrast allows for a sensitive test of the central vision. The system also includes a narrowly tailored method of rejecting corrupted data allowing the system to selectively salvage useful portions of a signal. The system also provides a method of data modeling to locate the N75-P100-N135 complex in a waveform and determine if it falls within the normal range.

Abstract: A method for determining a likelihood of a visual deficit in a subject uses a simultaneously multi-temporal visual test. At least two visual patterns are simultaneously displayed to the subject. Each pattern reverses in contrast or color at a different display frequency, and each pattern is displayed to a different region of the subject's visual field. Electrical activity of the brain of the subject is captured and sampled, and one or more frequency components are resolved from the resulting signal, where each frequency component corresponds to a different display frequency. The method then involves determining from the frequency components, optionally by comparison between the eyes, a measurement of a likelihood that a visual deficit exists in a particular area.

Abstract: A pattern VEP system for screening for glaucoma and other optic nerve related diseases/deficiencies. The system combines high contrast and low contrast testing. The low contrast testing allows for highly sensitive glaucoma testing and the high contrast allows for a sensitive test of the central vision. The system also includes a narrowly tailored method of rejecting corrupted data allowing the system to selectively salvage useful portions of a signal.

Abstract: A method for determining a likelihood of a visual deficit in a subject uses a simultaneously multi-temporal visual test. At least two visual patterns are simultaneously displayed to the subject. Each pattern reverses in contrast or color at a different display frequency, and each pattern is displayed to a different region of the subject's visual field. Electrical activity of the brain of the subject is captured and sampled, and one or more frequency components are resolved from the resulting signal, where each frequency component corresponds to a different display frequency. The method then involves determining from the frequency components, optionally by comparison between the eyes, a measurement of a likelihood that a visual deficit exists in a particular area.