It is described as a Neurological incident which will effect ten to thirty minutes earlier than headache. This Neurological occurrence is also called as Aura. Most of these Auras are clearly visible and are identified as bright glittering lights around the boundaries of field of vision or the crisscross lines or curvy images. All these symptoms lead to a loss of vision.

Loss of Visual aura consists of tongue or extremities, giddiness, unsteadiness, deadness of the face, weakness.
Symptoms
Before the headache, there are many other symptoms which will effect with in twenty four hours of visual disorder. They are:
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- Crisscross lines are observed.
- Blinking lights are observed.
- Many other visual illusions are observed.
- Momentary shaded spots are observed.
- Indistinct visualization.
- Eye ball tenderness.
In other words this Headache can be explained as Hammering pain which will start at one end of the head and it will spread to the other end. For most of the victims who are all affected with this Migraine headache, every time the pain starts at the same end. Many of them explained that the pain is at the back of neck and head behind the eye.
This migraine headache will start slowly and rises to the maximum limit with in quite a few minutes and hours. Some times, this pain will continue to be there for many hours to days, at that situation the patients are not much responsive to sound and light. Most of the patients prefer to relax in a gloomy room.
Treatment
Maintaining a dairy and updating that with the following points is the only way to find out the causes for the Migraine headaches:
- At what time the headache triggered.
- How serious the headache is.
- What are all the indications for this headache?
- What is the food taken at the time?
- What is your way of sleeping?
- Some more probable issues.
Medications are primarily given to treat the symptoms of migraine. Used alone or in combinations, these drugs can minimize pain, nausea, or emotional distress caused by the migraine.
Prevention
Patients who are suffering from dangerous migraines should keep away from the issues that caused the Migraine headaches previously. Some of the people affected with Migraine headaches can easily recognize the eatables which cause the migraine. As mentioned previously, maintaining a dairy for what are all the causes of these migraines, is the only solution. Most of the patients affected with Migraine turn out to be familiar with the indications before the Migraine headache and Medication to approaching headache.