Neuro-ophthalmic abnormalities in Tourette's syndrome: functional and anatomic implications.

Neuro-ophthalmic findings in 29 patients with Gilles de la Tourette's syndrome are described. Twenty-eight patients had blepharospasm, and 19 had other eye tics that included forced staring and involuntary gaze deviation. These neuro-ophthalmic abnormalities and ocular disturbances are similar to those found in known basal ganglia disorders.