Ocular or ophthalmic migraines are common in women under 40, especially those who have a family history of the disease. Ocular migraine is sometime associated with the brain and has strange symptoms. Some signs and symptoms related to tumors, aneurysms, strokes, and degenerative diseases require immediate medical treatment from the doctor.

Also called ophthalmic or eye migraines, ocular migraines are common and usually painless. They may cause various visual problems such as visual disturbances and the appearance of a small, enlarging blind spot in your central vision. Inside the spot, there are flicking lights or a shimmering zigzag line. During the process of ocular migraines, the spot enlarges and may move across your visual field. This process lasts from several minutes to 30 minutes.