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187 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[] 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[] Our study emphasises that in AOA2, hypometric saccades with a staircase pattern are a more reliable sign of oculomotor apraxia than head thrust movements.[]

  • 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[] Horizontal and vertical saccades were hypometric.[]

  • 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[]

  • 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[]

  • Hereditary Cerebellar Degeneration

    Slow horizontal hypometric saccades 6. Saccadic pursuit 7.[] Ocular Motility: Supranuclear vertical gaze palsy (saccades and pursuit) Slow to initiate horizontal eye movements on command Slow horizontal hypometric saccades To look rapidly[] Identifier 924-3 Title Spastic Cerebellar Ataxia of Charlevoix-Saguenay Ocular Movements Supranuclear Paralysis of Vertical Gaze; Slow Horizontal Hypometric Saccades; Convergence[]

  • Ataxia

    Eye movement examination demonstrated a marked saccade initiation defect with profound hypometric horizontal saccades. Vertical saccades were also affected but less so.[] Three years after her initial presentation, her examination showed hypometric saccades and reduced right arm swing and only mild impaired tandem gait.[] Table 1 Symptom-lesion mapping of the vestibulo-cerebellar syndrome Oculomotor vermis Hypometric saccades Impaired smooth pursuit Fastigial nucleus Square waves Hypermetric[]

  • Cerebellar Ataxia

    Patients had no nystagmus but slow or hypometric horizontal saccades and ocular motor apraxia.[] Table 1 Symptom-lesion mapping of the vestibulo-cerebellar syndrome Oculomotor vermis Hypometric saccades Impaired smooth pursuit Fastigial nucleus Square waves Hypermetric[]

  • Central Positional Vertigo

    Hypermetric saccades are present in cerebellar impairments, hypometric saccades mostly in brainstem lesions and neurodegenerative disorders.[] Hypermetric saccades are seen in lesions of the fastigial nucleus (and Wallenberg syndrome, lateral medullary syndrome) and hypometric saccades with lesions of the dorsal[] Generally slower accades, which are usually accompanied by hypometric saccades, occur in neurodegenerative disorders, for example.[]

  • Neuroferritinopathy

    In eye movements, blepharospasm with hypometric saccades was noted. Muscle tone and strength was normal with brisk tendon reflexes and bradykinesia.[]

  • Autosomal Recessive Spastic Paraplegia Type 39

    saccades, choreodystonic movements, severe motor and sensory polyneuropathy Blood: LDL Cholesterol Albumin Sometimes: CoQ10 APTX (606350) Aprataxin AOA2 (606002) 15 y (7–[] 607585) ATM ATLD (604391) 1–6 y Oculomotor apraxia, choreodystonic movements, increased radiosensitivity Blood: AFP normal MRE11 (600814) MRE11 AOA1 (208920) 7 y (1–20 y) Hypometric[]

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