Patent ID: 6966650

Claim:
A method for performing a medical test associated with glaucoma comprising displaying a plurality of visual stimuli for observation by one eye of a patient; detecting the patient's evoked brain potential signals in response to said stimuli through one or more electrodes attached to the patient's scalp; recording said evoked brain potential signals detected for each stimulus displayed: performing an automatic digital signal processing for a plurality of said recorded evoked brain potential signals following the recording; displaying an indication of whether there is a high or low likelihood of glaucoma on a computer monitor based on said digital signal processing; further wherein the digital signal processing comprises obtaining a plurality of fundamental frequency components of a plurality of the evoked brain potential signals corresponding to the periodic visual stimuli; performing a statistical method to determine a signal-to-noise ratio for said plurality of fundamental frequency components; comparing said signal-to-noise ratio with a preset critical value; and determining if the likelihood of glaucoma is high or low based on said comparison.