TIA appears more abruptly and is usually of shorter duration. Negativity is typical for it, i.e. part of the visual field, speech, eye movement, ability to swallow, sensation or muscle strength disappear without the above mentioned features of migraine.
Like a stroke, a migraine can be sudden and can lead to mild confusion. However, migraine aura symptoms tend to develop relatively slowly and then spread and intensify, while the symptoms of a TIA or stroke are sudden.
Migraine auras can be confused with transient ischaemic attack (TIA), where someone has stroke symptoms that pass in a short time. For instance, a migraine with only a visual aura but no headache may be mistaken for TIA. Like a stroke, a migraine can be sudden and can lead to mild confusion.
Ocular migraines and stroke are two conditions that share similar symptoms and can often be confused. Although an ocular migraine alone does not indicate a stroke, studies show that those who suffer from ocular migraines may be at a higher risk of experiencing a stroke.
Focal seizures and seizure aura can mimic migraine aura. Visual migraine aura can be confused for occipital seizures and vice versa, although symptoms are classically distinct.
If you have visual symptoms that have not previously been evaluated by a health care provider, you should see a provider if you have any of the following: Visual changes in only one eye. Visual changes that last less than five minutes and more than 60 minutes. Visual changes without a headache.
Ocular Migraine Treatment
The visual portion of an ocular migraine usually lasts less than 60 minutes, so most people don't need treatment. It's best to stop what you're doing and rest your eyes until your vision goes back to normal. If you have a headache, take a pain reliever that your doctor recommends.
Frequent ocular migraines are usually the result of a trigger of some type. Like migraines, ocular migraines can be triggered by a variety of things. Some examples include: Lights, sounds, or smells.
But during a migraine, these stimuli feel like an all-out assault. The result: The brain produces an outsize reaction to the trigger, its electrical system (mis)firing on all cylinders. This electrical activity causes a change in blood flow to the brain, which in turn affects the brain's nerves, causing pain.
If you get bad migraines or you have them often, you may worry that if you don't already have a brain tumor, the migraines might cause one. But research can help put your mind at ease. There is no evidence migraines cause brain tumors.
Stroke-Related Headaches
Oftentimes, the area affected by the headache is directly related to where the stroke occurs. For example, a blocked carotid artery can cause a headache on the forehead, while a blockage towards the back of the brain can cause a headache towards the back of the head.
Some people will experience symptoms such as headache, numbness or tingling several days before they have a serious stroke. One study found that 43% of stroke patients experienced mini-stroke symptoms up to a week before they had a major stroke.
Sudden confusion, trouble speaking, or difficulty understanding speech. Sudden trouble seeing in one or both eyes. Sudden trouble walking, dizziness, loss of balance, or lack of coordination. Sudden severe headache with no known cause.
Retinal migraines are rare, affecting 1 in 200 migraine sufferers. Retinal migraines cause repeated temporary episodes of blindness in just one eye.
Ocular migraine will typically go away with time. You should rest and avoid triggers such as bright lights until the vision disturbances are gone. There are both over-the-counter treatments and prescription medications that you can use to treat recurring migraine flares.
A visual migraine is a temporary visual distortion that often begins with a small sparkling, shimmering area that slowly expands outward. The growing spot often has jagged, zig-zag edges. The visual symptoms typically last approximately 20-30 minutes and then completely resolve.
Stress is a common trigger of migraine headaches, including ocular migraine headaches. Since anxiety causes stress, anxiety is a common cause of migraine headaches, including ocular migraine headaches.
Ophthalmologist or optometrist.
You might be referred to an eye specialist if, along with your migraine, you have what's called aura. This can include: Changes in your vision like blind spots or flashes of light.
In general, migraines likely involve alterations of blood flow to certain regions of the brain. In the case of ocular migraines, the involved area is the vision center of the brain.
The most substantial evidence for magnesium's effectiveness is in patients who have or have had aura with their migraine. It is believed magnesium may prevent the wave of brain signaling, called cortical spreading depression, which produces the visual and sensory changes in the common forms of aura.
Ocular migraine refers to a migraine episode with visual symptoms. If it occurs in one eye, it's called retinal migraine. But if it occurs in both eyes, doctors call it migraine with aura.
Diagnosing an Ocular Migraine
If you are experiencing any kind of impairment to your vision similar to the symptoms above, it is always important to discuss those with your doctor. A neurologist can help a patient distinguish between whether they are experiencing migraine aura or more serious retinal migraines.
This may occur due to a combination of genetic factors, lifestyle, and environmental conditions. If you are suddenly getting ocular migraines, you must consult with your doctor to rule out any serious cause and prevent permanent vision loss.