It most often occurs because of penetrating head wounds. The frontal and temporal lobes are frequently involved. Of course this type of injury could occur anywhere in the brain. Dysphagia, aphasia, apraxia, dysarthria, paralysis, as well as visual and other problems can occur.
Double vision redirects here. For other uses, see Double vision (disambiguation). Diplopia, commonly known as double vision, is the simultaneous perception of two images of a single object that may be displaced horizontally, vertically, diagonally (i.e., both vertically and horizontally), or rotationally in relation to each other.
Many reasons: Double vision has many causes. The most common cause is eye fatigue in someone who has differing focal lengths in the two eyes. However, many other causes are possible, ranging from trivial to quite severe.