Blurred vision can affect one or both eyes, which means you may suffer vision problems, even blindness. Some causes are already stated: myopia, presbyopia, eye condition, dry eye and cataracts. Some medicines side effects also can caused blurred vision. Well, a stroke, or cerebrovascular accident (CVA), is the rapid loss of brain function due to disturbance in the blood supply to the brain. Stroke is easy to lead to blurred vision. If blood cannot be provided enough for eyes, eyesight problems will occur gradually. So keep in mind that any change in vision should always be evaluated by a medical professional.