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abnormality of ocular movements in which the eyes overshoot on attempting to fixate an object.
a visual disorder in which the eyes are unable to fix the gaze on an object or follow a moving object with accuracy. It is often characterized by overshooting, in which the eyes move further than the intended object of fixation. It is a sign of cerebellar disease.
oc·u·lar dys·met·ri·a(ok'yū-lăr dis-mē'trē-ă)
An abnormality of ocular movements in which the eyes overshoot on attempting to fixate on an object; usually indicating cerebellar disease; symptom of several neurologic conditions, including multiple sclerosis.
[L. oculus, eye + dys- + G. metron, measure]
Abnormality of eye movements in which the eyes overshoot (hypermetria) or undershoot (hypometria) when attempting to fixate an object. It could be a sign of cerebellar disease, ocular motor nerve paresis, myasthenia gravis, internuclear ophthalmoplegia (overshoot of the eye contralateral to the lesion), etc. See flutter; opsoclonus.