Ocular migraines are usually brief, lasting less than 5 minutes. But they can last up to 30 minutes. Forty-one percent of people have a headache during the vision loss, and 25% have it before or after.
In some people, certain foods and drinks -- or components they contain -- can trigger a migraine. One well-accepted migraine trigger is tyramine.
Tyramine is a substance found naturally in some foods. It's especially found in aged and fermented foods, such as:
Some types of beer
Also, foods high in protein may contain more tyramine if:
They have been stored for a long time
They have not been kept cold enough
Since they're fairly brief, your doctor will most likely diagnose you based on the symptoms you remember and describe.
The condition is also similar to other serious disorders, such as eye diseases and stroke. So your doctor will want to check you out thoroughly to make sure you don’t have one of those problems. Your doctor may run extra tests to rule out more serious conditions if you: