Ocular-vestibular Biomarker Identification for ADHD

Inclusion Criteria: * Men and women ages 6-70 seeking evaluation and treatment for ADHD. Exclusion Criteria: * Clinical diagnosis of a neurological condition including the following: stroke, multiple sclerosis, epilepsy, brain tumor/cancer, dyslexia, nystagmus and/or other major neurological condition. * Clinical diagnosis of any of the following eye-sight abnormalities: uncorrected amblyopia, uncorrected myopia, uncorrected presbyopia, uncorrected farsightedness or uncorrected Astigmatism. * Psychiatric history with any of the following: * LIFETIME: Clinical diagnosis of a psychotic disorder; bipolar disorder * LAST YEAR: Clinical diagnosis of major depressive disorder; PTSD; clinical diagnosis of substance abuse disorder; major anxiety disorder * Use of a psychotropic medication * Impairment of cranial nerves II-VI * Participants who receive a 'Poor' or 'Fair' eye tracking quality result on either their baseline or follow-up evaluations will be excluded from analysis. Subjects may not repeat participation