Ophthalmic viscosurgical devices are primarily formulated using high-purity, biocompatible polymers dissolved in physiological buffer solutions. The most common primary ingredient utilized in these clear, gel-like substances is sodium hyaluronate (hyaluronic acid), alongside other specialized polymeric compounds such as chondroitin sulfate or hydroxypropyl methylcellulose, which provide the essential viscoelastic properties required to protect delicate intraocular tissues during eye surgeries.