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  2. Parinaud's syndrome - Wikipedia

    en.wikipedia.org/wiki/Parinaud's_syndrome

    Parinaud's syndrome is a cluster of abnormalities of eye movement and pupil dysfunction, characterized by: Paralysis of upwards gaze: Downward gaze is usually preserved. This vertical palsy is supranuclear , so doll's head maneuver should elevate the eyes, but eventually all upward gaze mechanisms fail.

  3. Argyll Robertson pupil - Wikipedia

    en.wikipedia.org/wiki/Argyll_Robertson_pupil

    A third cause of light-near dissociation is Parinaud syndrome, also called dorsal midbrain syndrome. This uncommon syndrome involves vertical gaze palsy associated with pupils that “accommodate but do not react." [5] The causes of Parinaud syndrome include brain tumors (pinealomas), multiple sclerosis and brainstem infarction.

  4. Parinaud's oculoglandular syndrome - Wikipedia

    en.wikipedia.org/wiki/Parinaud's_oculoglandular...

    Parinaud's oculoglandular syndrome (POS) is a medical condition characterized by a specific set of symptoms affecting the eye and nearby lymph nodes. Named after the French ophthalmologist Henri Parinaud , it should not be confused with the neurological syndrome caused by a lesion in the midbrain which is also known as Parinaud's syndrome .

  5. Convergence insufficiency - Wikipedia

    en.wikipedia.org/wiki/Convergence_insufficiency

    The symptoms and signs associated with convergence insufficiency are related to prolonged, visually demanding, near-centered tasks. They may include, but are not limited to, diplopia (double vision), asthenopia (eye strain), transient blurred vision, difficulty sustaining near-visual function, abnormal fatigue, headache, and abnormal postural adaptation, among others.

  6. Pinealoma - Wikipedia

    en.wikipedia.org/wiki/Pinealoma

    Frequently, paralysis of upward gaze along with several ocular findings such as convergence retraction nystagmus and eyelid retraction also known as Collier's sign and Light Near Dissociation (pupil accommodates but doesn't react to light) are known collectively as Parinaud's syndrome [1] or Dorsal Mid-brain syndrome, are the only physical ...

  7. Accommodative excess - Wikipedia

    en.wikipedia.org/wiki/Accommodative_excess

    Parinaud's syndrome, which can mimic some aspects of spasm of the near reflex, such as excessive accommodation and convergence; however, pupillary near-light dissociation, not miosis, is a feature of Parinaud's syndrome. [8]

  8. Henri Parinaud - Wikipedia

    en.wikipedia.org/wiki/Henri_Parinaud

    Henri Parinaud was born in Bellac into a lower-class family in 1844, and his father died when Henri was 19. He went on to study medicine at Limoges , and then in Paris in 1869. When the Franco-Prussian War broke out in 1870, he went to serve as a doctor with the Red Cross , where he earned a medal for Unusual Bravery.

  9. One and a half syndrome - Wikipedia

    en.wikipedia.org/wiki/One_and_a_half_syndrome

    The one and a half syndrome is a rare weakness in eye movement affecting both eyes, in which one cannot move laterally at all, and the other can move only in outward direction. More formally, it is characterized by " a conjugate horizontal gaze palsy in one direction and an internuclear ophthalmoplegia in the other ".