This affects the middle layer of the wall from the eye referred to as the Uvea, and also the problem is comparable to it is elsewhere within your body. If you are classed for a computer user you have entitlement to a free test, and may even receive help towards the cost of glasses. http://Marengoonline.com/__media__/js/netsoltrademark.php?d=Www.theralife.com%2Fdry-eyes-and-migraine-headaches%2F