Additional file 3: of The diagnostic value of saccades in movement disorder patients: a practical guide and review

, , Janet Rucker & Steven Frucht
Segment 3. Degenerative ataxias. Spinocerebellar ataxia type 2 (SCA2): This patient with genetically confirmed SCA-2 and a history of mild scanning dysarthria and mild wide-based gait, demonstrates pathognomonic eye findings of SCA-2. Rare square wave jerks are present. She blinks to generate vertical saccades, and vertical saccadic speed is mildly slow. Similar blinks are used to generate horizontal saccades, but horizontal saccades are even slower and more difficult than vertical saccades. Spinocerebellar ataxia type 3...
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