Sodium hyaluronate acts as a tissue lubricant and is considered to play an important role in regulating the interactions between adjacent tissues. It forms a viscoelastic solution in water. The high viscosity of the solution provides mechanical protection for tissues (iris, retina) and cell layers (cornea, endothelium, and epithelium). The elasticity of the solution helps to absorb mechanical stress and provides protective buffering for the tissue. In promoting wound healing, it is believed to act as a protective transport tool, bringing peptide growth factors and other structural proteins to the site of action. Then enzymatic degradation and release of active proteins to promote tissue repair.