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2 per 100,000 per year [ 4] Idiopathic intracranial hypertension ( IIH ), previously known as pseudotumor cerebri and benign intracranial hypertension, is a condition characterized by increased intracranial pressure (pressure around the brain) without a detectable cause. [ 2] The main symptoms are headache, vision problems, ringing in the ears ...
The International Classification of Headache Disorders (ICHD) is a detailed hierarchical classification of all headache-related disorders published by the International Headache Society. [1] It is considered the official classification of headaches by the World Health Organization , and, in 1992, was incorporated into the 10th edition of their ...
Episodes of vasovagal syncope are typically recurrent and usually occur when the predisposed person is exposed to a specific trigger. Before losing consciousness, the individual frequently experiences early signs or symptoms such as lightheadedness, nausea, the feeling of being extremely hot or cold (accompanied by sweating), ringing in the ears, an uncomfortable feeling in the heart, fuzzy ...
Retinal migraine is a retinal disease often accompanied by migraine headache and typically affects only one eye. It is caused by ischaemia or vascular spasm in or behind the affected eye. The terms "retinal migraine" and "ocular migraine" are often confused with "visual migraine", which is a far-more-common symptom of vision loss, resulting ...
Prevalence. ~15% [ 10] Migraine ( UK: / ˈmiːɡreɪn /, US: / ˈmaɪ -/) [ 11][ 12] is a genetically influenced complex neurological disorder characterized by episodes of moderate-to-severe headache, most often unilateral and generally associated with nausea and light and sound sensitivity. [ 1] Other characterizing symptoms may include ...
The experience of amaurosis fugax is classically described as a temporary loss of vision in one or both eyes that appears as a "black curtain coming down vertically into the field of vision in one eye;" however, this altitudinal visual loss is not the most common form. In one study, only 23.8 percent of patients with transient monocular vision ...
Frequency. can be relapsing. Optic neuritis describes any condition that causes inflammation of the optic nerve; it may be associated with demyelinating diseases, or infectious or inflammatory processes. [ 1] It is also known as optic papillitis (when the head of the optic nerve is involved), neuroretinitis (when there is a combined involvement ...
Recurrent painful ophthalmoplegic neuropathy ( RPON ), previously known as ophthalmoplegic migraine ( OM ), is a rare neurological disorder that is characterized by repeated headache attacks and reversible ipsilateral paresis of one or more ocular cranial nerves (CN). [1] Oculomotor nerve (CNIII) is by far the most common cranial nerve involves ...