A stroke, as known as a cerebrovascular accident, is caused when the blood flow to any portion of the brain is blocked or significantly reduced. This lack of blood flow deprives that particular portion of the brain of necessary nutrients and oxygen. There are two types of strokes: an ischemic stroke which is typically caused by a blocked artery, or a hemorrhagic stroke which is typically caused by a leaking or bursting blood vessel. Eighty-five percent of strokes are ischemic in nature. Common symptoms of a stroke are:
It can also include symptoms similar to that of a concussion including ringing in the ears, tiredness/fatigue, dizziness, mood changes, sleep disturbances, and difficulty with memory and concentration.
- Visual problems such as blurred vision, double vision, or dimming vision
- Trouble with walking/coordination
- Difficulty speaking
- Numbness of paralysis of the face, arm, or leg
It can also include symptoms similar to that of a concussion including ringing in the ears, tiredness/fatigue, dizziness, mood changes, sleep disturbances, and difficulty with memory and concentration.
Some of this information was produced by the College of Optometrists in Vision Development, which board certifies qualified optometric physicians in vision therapy. www.covd.org.