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  2. Visual snow syndrome - Wikipedia

    en.wikipedia.org/wiki/Visual_snow_syndrome

    Visual snow likely represents a clinical continuum, with different degrees of severity. The presence of comorbidities such as migraine and tinnitus is associated with a more severe presentation of visual symptoms. [13] Non-visual symptoms may include difficulty concentrating, insomnia, frequent migraines, nausea, and vertigo. [16]

  3. Hypertensive encephalopathy - Wikipedia

    en.wikipedia.org/wiki/Hypertensive_encephalopathy

    Since decreasing blood pressure is essential, anti-hypertensive medication is administered without awaiting the results of the laboratory tests. Electroencephalographic examination detects the absence of alpha waves, signifying impaired consciousness. In people with visual disturbances, slow waves are detected in the occipital areas. [citation ...

  4. Alice in Wonderland syndrome - Wikipedia

    en.wikipedia.org/wiki/Alice_in_Wonderland_syndrome

    Alice in Wonderland Syndrome (AIWS), also known as Todd's Syndrome or Dysmetropsia, is a neurological disorder that distorts perception.People with this syndrome may experience distortions in their visual perception of objects, such as appearing smaller or larger (), or appearing to be closer or farther than they are.

  5. ICHD classification and diagnosis of migraine - Wikipedia

    en.wikipedia.org/wiki/ICHD_classification_and...

    Under the category of headache attributed to a substance or its withdrawal, the ICHD specifies the diagnostic criteria for oestrogen-withdrawal headache (8.4.3, G44.83 and Y42.4), and suggests that both that diagnosis and one of the menstrual migraine diagnoses be used in case of migraines related to oestrogen withdrawal occurring mainly at ...

  6. Videonystagmography - Wikipedia

    en.wikipedia.org/wiki/Videonystagmography

    The testing typically takes place in a dark or dimmed room with the patient laying or sitting, depending on the test, on a table or chair that can lean back to a flat position. [2] The patient wears goggles containing a camera that tracks the pupils using infrared imaging; the video eye-tracking system records and sends pupil movement tracings ...

  7. Hyperviscosity syndrome - Wikipedia

    en.wikipedia.org/wiki/Hyperviscosity_syndrome

    Hyperviscosity syndrome is a group of symptoms triggered by an increase in the viscosity of the blood.Symptoms of high blood viscosity include spontaneous bleeding from mucous membranes, visual disturbances due to retinopathy, and neurologic symptoms ranging from headache and vertigo to seizures and coma.

  8. Migraine-associated vertigo - Wikipedia

    en.wikipedia.org/wiki/Migraine-associated_vertigo

    Vertigo is a medically recognized term for the symptom of a vestibular system disturbance. It may include a feeling of rotation or illusory sensations of motion or both. The general term dizziness is used by nonmedical people for those symptoms but often refers to a feeling of light-headedness, giddiness, drowsiness, or faintness, all of which must be differentiated from true vertigo, [3 ...

  9. Migrainous infarction - Wikipedia

    en.wikipedia.org/wiki/Migrainous_infarction

    A migrainous infarction is a rare type of ischaemic stroke which occurs in correspondence with migraine aura symptoms. [1] Symptoms include headaches, visual disturbances, strange sensations and dysphasia, all of which gradually worsen causing neurological changes which ultimately increase the risk of an ischaemic stroke. [2]