Search results
Results from the WOW.Com Content Network
[25] [26] In episodic cluster headache, attacks occur once or more daily, often at the same time each day for a period of several weeks, followed by a headache-free period lasting weeks, months, or years. Approximately 10–15% of cluster headaches are chronic, with multiple headaches occurring every day for years, sometimes without any ...
Generally, diseases outlined within the ICD-10 codes G40-G47 within Chapter VI: Diseases of the nervous system should be included in this category. Subcategories This category has the following 4 subcategories, out of 4 total.
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 ...
Generally, diseases outlined within the ICD-10 codes H46-H48 within Chapter VII: Diseases of the eye, adnexa should be included in this category. Pages in category "Disorders of optic nerve and visual pathways"
Visual field-bitemporal hemianopia Visual field-binasal hemianopia. A lesion involving complete optic chiasm, which disrupts the axons from the nasal field of both eyes, causes loss of vision of the right half of the right visual field and the left half of the left visual field. [3] This visual field defect is called as bitemporal hemianopia.
CPH occurs roughly in 1 in 50,000 people, while cluster headaches are comparatively more common and are found in 1 in 1000 people. [5] Cluster headaches occur primarily in men, while CPH is more commonly diagnosed in women. [6] The female to male ratio of diagnosed patients can range anywhere from 1.6:1 to 2.36:1. [5]
Pituitary tumors are the most common cause of chiasmal syndromes. Visual field defects may be one of the first signs of non-functional pituitary tumor. These are much less frequent than functional adenomas. Systemic hormonal aberrations such as Cushing's syndrome, galactorrhea and acromegaly usually predate the compressive signs. Pituitary ...
A scotoma is an area of partial alteration in the field of vision consisting of a partially diminished or entirely degenerated visual acuity that is surrounded by a field of normal – or relatively well-preserved – vision. Every normal mammalian eye has a scotoma in its field of vision, usually termed its blind spot.