Correct the vision defect, and the dyslexia disappears. A small proportion of those who have difficulty learning to read find that they can focus better on the words when they place a thin sheet of colored plastic over the text. Others find this to be of no help. Some, noting that the condition runs in families, offer a genetic explanation. The part of the brain that controls posture, balance, and coordination is called the cerebellum.
Some scientists claim that it also plays a part in our thinking and language processing.
Interestingly, researchers at Sheffield University in England have developed a dyslexia test that involves balance and coordination. They reason that faults in the cerebellum prompt healthy areas of the brain to compensate. Children generally find little difficulty in maintaining their balance when asked to stand still, one foot in front of the other with arms outstretched. But blindfold them, and the dyslexic children wobble far more, since they rely heavily on sight to help them balance. Still other researchers point out that the brains of dyslexic children show anatomic differences.