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182 Possible Causes for Hypometric Saccades

  • Oculomotor Apraxia

    The intended target of the movement is reached only with the help of several corrective, hypometric saccades. a Hypermetria to the left with corrective hypometric saccades[] Our study emphasises that in AOA2, hypometric saccades with a staircase pattern are a more reliable sign of oculomotor apraxia than head thrust movements.[] Ocular saccade initiation was normal, but their duration was increased by the succession of multiple hypometric saccades that could clinically be confused with 'slow saccades[]

  • X-Linked Sideroblastic Anemia and Ataxia

    Examination of adults shows dysarthria, ataxia of upper limbs and gait, ophthalmoparesis, hypometric saccades, saccadic pursuit, nystagmus, occasional perioral fasciculations[] Nystagmus and hypometric saccades may occur. Mild learning disability and depression are seen. The moderate hypochromic and microcytic anemia does not cause symptoms.[] Examination demonstrated broken pursuit eye movements and some hypometric saccades. He had some perioral fasciculation.[]

  • Spinocerebellar Ataxia with Rigidity and Peripheral Neuropathy

    Slow horizontal hypometric saccades 6. Saccadic pursuit 7.[] saccades, jerky pursuit movements and incomplete range of movement).[] ) or undershoot the target ( hypometric saccade ) (* saccades are rapid eye movements by which we voluntarily shift the line of sight between objects of interest) – ocular[]

  • Ataxia-Oculomotor Apraxia Syndrome

    Oculographic recordings demonstrate normal latencies, hypometric saccades, decrease mean gain in amplitude and broken saccades into multiple successive saccades.[] Patients with ataxia telangiectasia have prolonged vertical and horizontal saccade latencies and hypometric saccades, and, although not all, some patients show head thrusts[]

  • Lateral Medullary Syndrome

    Second is the saccadic lateropulsion whereby voluntary saccades towards the side of lesion are hypermetric and saccades towards opposite side are hypometric.[] hypometric.[] Man with right lateral medullary infarct from vertebral artery dissection Left-beating horizontal jerk nystagmus Saccadic lateropulsion: note series of very hypometric saccades[]

  • Spastic Paraplegia - Ataxia - Mental Retardation

    Slow horizontal hypometric saccades 6. Saccadic pursuit 7.[] Oculomotor signs, such as nystagmus, strabismus, ptosis and hypometric saccades, may also be associated.[] saccades; EOM Limited Ataxia: Arms & Legs Pyramidal features Spasticity Tendon reflexes: Increased Truncal & Limb Legs Arms Dysarthria Dystonia (60%): Cervical; Limbs Sensation[]

  • Dystonia with Cerebellar Atrophy (DYTCA)

    Lower limb pain and amyotrophy may be present, as well as various cerebellar signs, including dysarthria, nystagmus, hypometric saccades and tremor.[] […] smooth pursuit Autosomal dominant inheritance Truncal ataxia Chorea Muscle weakness Adult onset Gait disturbance Abnormal cerebellum morphology Optic atrophy Hypometric saccades[] […] sensory impairment Frequent falls Cognitive impairment Dysdiadochokinesis Pes cavus Dysmetria Babinski sign Cerebellar vermis atrophy Areflexia Pica Global developmental delay Saccadic[]

  • Joubert Syndrome Type 3

    saccades if oculomotor apraxia is not complete.[] Saccadic lateropulsion can also be combined with a centrifugal/centripetal asymmetry , with hypometric centrifugal saccades and hypermetric centripetal ones (37), and can[] saccades, external ophthalmoplegia AR APTX - ATAXIA TELANGIECTASIA (LOUIS-BAR SYNDROME) Oculomotor abnormalities AR ATM #208900 AUTOSOMAL DOMINANT CEREBELLAR ATAXIA DEAFNESS[]

  • Paraneoplastic Neurologic Syndrome

    Neuro-otological examinations revealed: 1) gaze nystagmus on both right and left lateral gaze, 2) saccadic pursuit, 3) hypometric saccades, 4) diminished caloric nystagmus[] saccades, abduction deficits, esotropia, ptosis), mild to profound mental retardation with ventriculomegaly and/or generalised brain atrophy, poor or absent speech, and,[] […] dysdiadochokinesia and dysarthria, and generalised cerebellar atrophy on MRI with small inferior vermis and retrocerebellar cysts, eye movement abnormalities (horizontal nystagmus, hypometric[]

  • Abnormal Eye Movement

    Because pursuit in young infants is actually a series of hypometric saccades, young infants with COMA cannot follow an object of interest.[] Dysmetric saccades include hypermetric saccades that overshoot the target, usually due to lesion of the fastigial nuclei, and hypometric saccades that undershoot the target[] Instead, our data demonstrated both hypometric and hypermetric saccades in ASD, with average saccade amplitude similar to that of healthy controls.[]

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