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During certain types of migraine headaches there are 4 phases. Prodrome, Aura, Pain, Postdrome.
During the Aura phase some people experience an "aura" as flashing lights or loss of peripheral vision. Some people have a greying out or blacking out of vision nearly entirely.
Migraine is a neurological problem, beginning with a change in the electrical activity in the brain. Scientists are still not sure exactly what causes aura, but they believe it may have something to do with this electrical activity and the change in blood flow which happens in the brain during a migraine attack.
While most people experience aura as short duration right before the headache begins, others continue to experience the aura during or after the pain is over.
What else can I help you with?
What do you do if migraines do something to your eye?
A Migraine that affects your vision is usually a Migraine with aura. Aura usually lasts a short time (minutes to hours) and reverses itself when the Migraine resolves. An aura that does not resolve itself is a reason to see a doctor as soon as possible.
When was A Short Vision created?
A Short Vision was created in 1956.
What is short term planning in health?
it is a plan whose cause of action is for a short period of time
What is the duration of A Short Vision?
The duration of A Short Vision is 360.0 seconds.
Where can i learn about the causes of migraines?
Much information about migraines may be found on: http://en.wikipedia.org/wiki/Migraine. In short, a migraine is a chronic neurological disorder, known by moderate to severe headaches.
Is stint a short period or a long period?
a short period.
What actors and actresses appeared in A Short Vision - 1956?
The cast of A Short Vision - 1956 includes: James McKechnie as Commentator
What is the vision of diesel?
short sighted
What are the differences between long-sightedness and short-sightedness, and how do they affect one's vision?
Long-sightedness, also known as hyperopia, occurs when the eye is unable to focus on nearby objects. Short-sightedness, or myopia, happens when the eye struggles to see distant objects clearly. Long-sightedness can cause blurry vision up close, while short-sightedness results in blurry vision far away. Both conditions can be corrected with glasses or contact lenses.
Is it possible to miss a period on birth controle and not be pregnant?
Yes. If you have been sick or under stress this could cause a missed period. Sometimes a period is so light and short it is almost like you haven't had one, but you did.
Is it bad to get a laser pen in your eye?
Any kind of pen, or pencil, in your eye is likely to hurt and could damage your eyeball. Getting the light from a laser pen in your eye for a short period (less than a minute) may dazzle you and temporarily impair your vision, but if the laser pen was properly made and classified, it should not cause permanent damage. Other forms of lasers, and improperly made laser pens, can cause permanent eye damage after very short exposure.
What is another word for a short period?
For a while can be used to mean 'for a short period of time'.
