Pupil cycle time in space occupying lesions of anterior optic pathways.
Twenty-nine patients with presumed compressive optic neuropathy were studied, and pupil cycle times were measured. We found (1) normalcy of the test in cases of space-occupying lesion without suprasellar extension or after successful operation; (2) prolongation of pupil cycle time in cases of subclinical disorder conformed by visual evoked responses as well; (3) a good correlation between the values of prolonged pupil cycle time and degree of involvement of the visual field in pathological cases.
D005134:Eye Neoplasms / Q000503:physiopathology*; D006801:Humans; D009408:Nerve Compression Syndromes / Q000503:physiopathology*; D009901:Optic Nerve Diseases / Q000503:physiopathology*; D011680:Pupil / Q000503:physiopathology*; D012025:Reflex, Pupillary; D014794:Visual Fields