What is a Migraine Aura?
Migraine aura is a neurological phenomenon that occurs before or during a migraine attack. It affects various senses, typically manifesting as visual disturbances. Patients may experience flashing lights, zigzag lines, or even temporary loss of vision in one eye. In addition to visual changes, aura can involve sensory or motor symptoms, such as tingling sensations, numbness, or speech difficulties.
The aura usually develops gradually over a period of 5 to 20 minutes and can last for up to an hour. It is important to note that not all individuals with migraines experience aura; approximately 25-30% report it as part of their migraine episodes.
Migraine aura is often linked to the cortical spreading depression, which is a wave of altered electrical activity in the brain. Understanding the nature of the aura can help individuals identify their migraine triggers and manage their symptoms more effectively.
If you frequently experience migraine auras, it is advisable to consult a healthcare professional for proper diagnosis and treatment options tailored to your needs. Early intervention can often help mitigate the severity of migraine attacks and improve overall quality of life.