ocular dysmetria


oc·u·lar dys·met·ri·a

abnormality of ocular movements in which the eyes overshoot on attempting to fixate an object.

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]

dysmetria, ocular

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.