Dry eye syndrome (DES), also known as keratoconjunctivitis sicca (KCS) or keratitis sicca, is not just a minor discomfort. Dry Eye Syndrome is primarily caused by poor quality or quantity of tears. The most common symptoms of dry eye syndrome are a dry, gritty, sandy sensation. Dry eye is a serious, progressive condition that can potentially lead to serious vision loss. http://www.eyetoeyecare.com/eye-care/dry-eye-know-see-doctor/ Enjoy!"