The product adopts high-purity refined medical sodium hyaluronate and is a kind of ideal adjuvant to ophthalmic surgery. With the average molecular weight of 1 2.4 millions, it contains 1-2% medical sodium hyaluronate, has good kinematic viscosity, little deviation, and sufficient functions of forming anterior chamber and protecting corneal endothelium. The substance is a kind of high-viscoelasticity, sterile, non-pyrogenic, and nonantigenic macromolecular polysaccharide biomaterial. The preparation is packed in pre-filling and pre-sealing injector, which is easy to operate in operation. Functions and Mechanisms: viscoelastic liner function, pseudoplastic function, tissue isolation function, and viscous blockage function. Application Scope: intracapsular and extracapsular cataract extraction, keratoplasty, glaucoma surgery, retinal decollement, phacoemulsification, ocular trauma surgery and ocular surgery. Specifications: 0.5ml/piece, 0.8ml/piece, and 1ml/piece.