Imagine suddenly seeing strange patterns of sunshine: perhaps they flicker, twist within the air, flash different colours, or shine in shapes you may see through a kaleidoscope. These visual phenomena appear out of blue and disappear soon. And in the event you see them every now and then, they will be the results of certain forms of migraines.
What is a migraine?
A migraine is a condition characterised by debilitating headaches, normally on one side of the pinnacle, that may last for hours or days. It is usually accompanied by nausea, vomiting, brain fog, and sensitivity to light and sound.
The aura often goes away inside an hour and will likely be followed by a headache.
Migraine flashes without headache
For some individuals with migraines, the headaches never come. Yet they still experience strange, sudden light patterns or dark vision, and can have other migraine symptoms, reminiscent of nausea and sensitivity to light.
This sort of migraine, called a “silent migraine,” can still be debilitating. And the primary silent migraine attack could be mistaken for a stroke, which may cause vision changes or loss.
Ocular migraine
Another sort of migraine that causes disabling visual disturbances affects the retina (the tissue in the back of the attention that sends light signals to the brain). This type known as retinal or ocular migraine.
Like migraine flashes, ocular migraines also bring flashing lights or dark vision, but normally in just one eye, and for a really different reason. “One theory about ocular migraine is that it may be caused by a narrowing of the blood vessels in the retina. This phenomenon does not cause eye pain, and it may not accompany a classic migraine headache,” says Dr. Estrella.
When the glow is created.
Sudden light patterns lasting greater than a number of minutes shouldn't routinely be chalked as much as a migraine. If vision changes are accompanied by weakness on one side of your body or facial droop, confusion, or difficulty speaking, the lights may indicate a stroke. If the sunshine is visible in just one eye, blood flow to the retinal arteries could also be blocked or the retina could also be detached, causing everlasting vision loss. In either case, go to the emergency room.
If you've got been experiencing light pattern episodes for some time — whether day by day or occasional — see your eye doctor as soon as possible to find out if migraines are guilty.
Treatment
Doctors use different methods to try to forestall the occurrence of ocular or silent migraines. For example, they might prescribe the calcium channel blocker verapamil or antiseizure medications, reminiscent of topiramate, depending on the characteristics of the migraine. Doctors might also prescribe magnesium supplements. “The theory is that magnesium helps reduce the frequency and severity of migraine attacks, possibly by blocking pain-inducing chemicals in the brain,” says Dr. Estrella.
Medications called triptans can assist reduce a silent migraine attack after it starts, especially whether it is accompanied by other migraine symptoms. We haven't any strategy to stop an ocular migraine attack because it is going on.
What are you able to do?
For many individuals, the one strategy to take care of an ocular or silent migraine episode is to attend it out. “Relax and avoid visual stimulation, which makes things worse,” advises Dr. Estrella. “Go to a dark, quiet room, and drink water if you're dehydrated.”
Other methods include meditating, reducing stress, and avoiding triggers that trigger your symptoms, reminiscent of dehydration, too little sleep, alcohol, and nitrates (in soy sauce, for instance) or preservatives (in lots of packaged foods).
If you are unsure about your triggers, Dr. Estrella recommends writing down the situations before each episode to search out common patterns, or typing the situations right into a smartphone app with an algorithm that finds the patterns for you.
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