Scintillating scotoma
Scintillating Scotoma
Scintillating Scotoma (pronunciation: sin-til-lay-ting sko-toe-ma) is a type of aura that is commonly associated with migraines. The term originates from the Latin word "scintilla", meaning "spark", and the Greek word "skotoma", meaning "darkness".
Definition
Scintillating Scotoma is a visual disturbance characterized by the presence of shimmering or flickering lights, often in a C-shaped pattern, that gradually expand over a period of several minutes. This phenomenon is often followed by a headache, typically indicating the onset of a migraine.
Symptoms
The primary symptom of Scintillating Scotoma is the perception of flickering lights in the visual field. These lights may appear as zigzag lines, waves, or spots. Other symptoms may include:
- Blind spots or areas of reduced vision
- Photophobia (sensitivity to light)
- Phonophobia (sensitivity to sound)
- Nausea or vomiting
Causes
The exact cause of Scintillating Scotoma is not fully understood. However, it is believed to be related to changes in blood flow in the brain, specifically in the visual cortex. This may be triggered by various factors, including stress, certain foods, lack of sleep, or hormonal changes.
Treatment
Treatment for Scintillating Scotoma primarily involves managing the underlying cause, which is often a migraine. This may include medications to relieve pain, reduce inflammation, or prevent migraines from occurring. Lifestyle changes, such as stress management and dietary modifications, may also be beneficial.
Related Terms
External links
- Medical encyclopedia article on Scintillating scotoma
- Wikipedia's article - Scintillating scotoma
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