4-Visual problems
Suddenly, the individual begins to report blurry vision and other visual problems such as double vision (diplopia) or even black spots or areas in one or both eyes. Besides, they may also experience photophobia or see images that move. Sometimes he becomes unable to look on the same side with one or both eyes. It occurs when the arteries branching from the internal carotid artery (which carry blood along the front of the neck to the brain) are affected.