In 50% of cases, ocular migraines cause temporary and dramatic visual disturbance. In the other half of cases, ocular migraines can cause lesser vision disturbances such as:
Partial vision loss
Scotomas, or a blank spots in your vision
Flashes of light
Ocular migraines are usually brief, lasting less than five minutes. However, they can last up to 30 minutes. Forty-one percent of people have a headache during the vision loss. Twenty-five percent have it before or after.
Migraines and sleep have a complicated relationship. Getting too little slumber -- or in some cases too much -- brings on migraines in people.
Plus, if you've already got a migraine, getting a good night's sleep can be tricky.
Exactly how poor sleep triggers migraines is still a mystery.
But whichever comes first -- migraines or sleep problems -- there are ways to ease both problems. Here's how to get started.
Since ocular migraines are fairly brief, it's likely that you will be diagnosed based on your recollection of symptoms.
The symptoms of ocular migraines are similar to those of other serious disorders, such as eye diseases and stroke. So your doctor will want to do a thorough evaluation. If you have any of the risk factors below, your doctor may run additional tests to rule out more serious conditions: