Pow Wows are the Native American peopleâs way of meeting together, to join in dancing, singing, visiting, renewing old friendships, and making new ones. This is a time method to renew Native American culture and preserve the rich heritage of American Indians.
Symptoms of ocular migraines. Some ocular migraines cause temporary but complete vision loss in one eye. Ocular migraines are usually brief, lasting less than one hour. Some people have a headache during the vision loss, others have it before or after.
In a study by Dr. Terayama et al., researchers found that the duration of a migraine is one of the most important factors affecting quality of life for migraine sufferers. So how long does a migraine headache last? It could last anywhere between a half hour and several days, and it varies depending on several factors.