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The aura phase of migraine can occur with or without a headache. Ocular or retinal migraines happen in the eye, so only affect the vision in that eye, while visual migraines occur in the brain, so affect the vision in both eyes together. Visual migraines result from cortical spreading depression and are also commonly termed scintillating scotoma.
Auras can also be confused with sudden onset of panic, panic attacks or anxiety attacks, which creates difficulties in diagnosis. The differential diagnosis of patients who experience symptoms of paresthesias , derealization , dizziness, chest pain, tremors, and palpitations can be quite challenging.
Symptoms typically appear gradually over 5 to 20 minutes and generally last less than 60 minutes, leading to the headache in classic migraine with aura, or resolving without consequence in acephalgic migraine. [3] For many sufferers, scintillating scotoma is first experienced as a prodrome to migraine, then without migraine later in life ...
Migraine symptoms range from severe headaches to seeing auras to irritability. Here, experts explain the symptoms associated with each migraine stage and type.
The main symptoms associated with an occipital lobe infarction involve changes to vision such as: blurry vision; blindness, which may affect part of vision only; hallucinations, such as flashing lights (photopsia): usually only in the context of blindness
Visual snow syndrome (VSS) is an uncommon neurological condition in which the primary symptom is that affected individuals see persistent flickering white, black, transparent, or colored dots across the whole visual field. [7] [4] Other common symptoms are palinopsia, enhanced entoptic phenomena, photophobia, and tension headaches.
Symptoms vary depending on the extent and location of the dissection and may include a sudden, severe headache, neck or facial pain, vision changes, a drooping eyelid (Horner's syndrome), and stroke-like symptoms such as weakness or numbness on one side of the body, difficulty speaking, or loss of coordination.
Those who acquire macropsia as a symptom of a virus usually experience complete recovery and restoration of normal vision. [citation needed] Dysmetropsia in one eye, a case of aniseikonia, can present with symptoms such as headaches, asthenopia, reading difficulties, depth perception problems, or double vision. [3]
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