You have to learn how to prevent eye strain or at least how to reduce it.
Do not play around with your health and your life, if in doubt, seek spet. They assume they own gotten sunburned or they blush almost instantly. http://goldcoastgreenery.com/__media__/js/netsoltrademark.php?d=Www.Opticaljournal.com%2Fstress-and-dry-eye-disease%2F