Chondroitin Sulphate, also call Chondroitin Sulfate mainly extracted from pigs, cattle, chicken, shark cartilage. For medical and pharmaceutical industry, the treatment of high blood pressure, arthritis, myocardial infarction, chronic nephritis, tinnitus disease, cancer and other health has a role. Chondroitin Sulphate on corneal collagen fibers has a protective effect, can promote the growth of the matrix fibers, enhanced permeability, improved blood circulation, accelerate metabolism, and promote infiltration of fluid absorption and the elimination of inflammation; promote corneal trauma healing and improve the symptoms of dry eye.