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  2. Scintillating scotoma - Wikipedia

    en.wikipedia.org/wiki/Scintillating_scotoma

    Symptoms: Aura in vision, nausea, dizziness, brain fog: Complications: Migraine onset: Duration: Less than 60 minutes: Causes: Cortical spreading depression: Risk factors: Migraine sufferer: Differential diagnosis: Persistent aura without infarction, Retinal migraine: Prevention: Avoiding migraine triggers: Prognosis: Self-limiting

  3. 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 ...

  4. Prism correction - Wikipedia

    en.wikipedia.org/wiki/Prism_correction

    Individuals with nystagmus, Duane's retraction syndrome, 4th Nerve Palsy, and other eye movement disorders experience an improvement in their symptoms when they turn or tilt their head. Yoked prism can move the image away from primary gaze without the need for a constant head tilt or turn. Prism correction is measured in prism dioptres. A ...

  5. Benign paroxysmal positional vertigo - Wikipedia

    en.wikipedia.org/wiki/Benign_paroxysmal...

    Vertigo—a spinning dizziness, which must have a rotational component Torsional nystagmus —a diagnostic symptom where the top of the eye rotates toward the affected ear in a beating or twitching fashion, which has a latency and can be fatigued (vertigo should lessen with deliberate repetition of the provoking maneuver): nystagmus should only ...

  6. Horror fusionis - Wikipedia

    en.wikipedia.org/wiki/Horror_fusionis

    Horror fusionis. Specialty. Ophthalmology. In ophthalmology, horror fusionis is a condition in which the eyes have an unsteady deviation, with the extraocular muscles performing spasm-like movements that continuously shift the eyes away from the position in which they would be directed to the same point in space, giving rise to diplopia.

  7. Vertigo - Wikipedia

    en.wikipedia.org/wiki/Vertigo

    The most common cause is benign paroxysmal positional vertigo , which accounts for 32% of all peripheral vertigo. Other causes include Ménière's disease (12%), superior canal dehiscence syndrome, vestibular neuritis, and visual vertigo.

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