Visual disturbances pose a very complex problem. The greatest disadvantage of glasses and contacts is that they fix the deteriorated condition of the eye at the current level. Instead of the muscles working toward improved vision, they adapt to the glasses or contacts. This effect causes the eye muscles to become tensed even more. On the other hand, without glasses, the child will squint and put even more strain on the eye muscles. Moreover, leaning forward also results in bad posture, muscle cramps, decrease blood flow to the eyes, and further damage. Ultimately, squinting creates a vicious cycle which resulting in declining...