An aspect of ataxia, in which the ability to control the distance, power, and speed of an act is impaired. Usually used to describe abnormalities of movement caused by cerebellar disorders. SEE ALSO: hypermetria, hypometria. [dys- + G. metron, measure]
- ocular d. abnormality of ocular movements in which the eyes overshoot on attempting to fixate an object.

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dys·met·ria dis-'me-trē-ə n impaired ability to estimate distance in muscular action

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dys·me·tria (dis-meґtre-ə) [dys- + Gr. metron measure] a condition in which there is improper estimation of distance in muscular acts, with disturbance of the power to control the range of muscular movement, often resulting in overreaching. See also hypermetria and hypometria.

Medical dictionary. 2011.

Look at other dictionaries:

  • Dysmetria — (Greek: difficult to measure ) refers to a lack of coordination of movement typified by the undershoot and/or overshoot of intended position with the hand, arm, leg, or eye. It is sometimes described as an inability to judge distance or… …   Wikipedia

  • dysmetria — /dis me tree euh/, n. Pathol. the inability to conform muscular action to desired movements because of faulty judgment of distance. [1910 15; < NL < Gk dys DYS + métr(on) a measure + ia IA] * * * …   Universalium

  • dysmetria — noun An inability to control or to limit muscular movement …   Wiktionary

  • dysmetria — n. lack of control of intentional movements due to improper judgment of distance or force …   English contemporary dictionary

  • dysmetria — dys·met·ria …   English syllables

  • dysmetria — n. impaired coordination due to disorders of the cerebellum or its connections within the brainstem. In the finger–nose test, the patient s finger over or undershoots or passes the target because of failure to control the movement accurately …   The new mediacal dictionary

  • dysmetria — də̇ˈsme.trēə noun ( s) Etymology: New Latin, from dys + Greek metron measure + New Latin ia more at measure : impaired ability to estimate distance in muscular action * * * /dis m …   Useful english dictionary

  • Ocular dysmetria — is a form of dysmetria that involves the constant under or over shooting of the eyes when attempting to focus gaze on something. Ocular dysmetria indicates lesions in the cerebellum, which is the brain region responsible for coordinating movement …   Wikipedia

  • ocular dysmetria — an error in ocular fixation consisting of overshooting the desired focus followed by oscillations of focus until fixation is achieved; the cause is a cerebellar lesion, usually of the vermis …   Medical dictionary

  • дисметрия — (dysmetria; дис + греч. metron мера, размер) избыточность или недостаточность амплитуды целенаправленных движений; наблюдается при поражении мозжечка или нарушении его связей …   Большой медицинский словарь

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