Finally, it is very important to point out that an early manifestation of ‘cerebellar’ eye movement abnormalities, for example, dysmetric saccades, square-wave jerks, ocular
[jnnp.bmj.com]
flutter, saccadic pursuit and gaze-evoked nystagmus, is typical of the most common spinocerebellar degenerative illnesses, and hence very useful to differentiate HD particularly
[jnnp.bmj.com]