title: The comparison of small-size rectangle and checkerboard stimulation for the evaluation of delayed visual evoked responses in patients suspected of multiple sclerosis.
abstract: The use of foveal small-size rectangle stimulation to elicit visual evoked responses was compared with VERs elicited by the standard checkerboard pattern. Foveal stimulation achieved a significantly better discrimination of optic nerve lesions in the early diagnosis of multiple sclerosis. Sources of misdiagnosis due to different neurological disorders are discussed.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005071:Evoked Potentials; D005556:Form Perception; D006801:Humans; D008722:Methods; D008875:Middle Aged; D009103:Multiple Sclerosis / Q000175:diagnosis* / Q000503:physiopathology; D009900:Optic Nerve / Q000503:physiopathology; D009902:Optic Neuritis / Q000503:physiopathology; D010364:Pattern Recognition, Visual; D011930:Reaction Time