Contact lens companies have known about PEG’s remarkable potential for decades. But none succeeded in developing a chemically stable material with commercially viable shelf life. Ocutec’s solution to the PEG stability challenge was was to use innovative polyol-urethane chemistry instead of traditional free radical chemistry. The result is our proprietary OcuPEG polymer material platform.
Key attributes of OcuPEG include:
- Richly hydrated lens surfaces that behave like the extra cellular matrix that baths cells in the human body, supporting tear film stability, ocular health, and wearing comfort.
- Protected by 33 issued patents, OcuPEG can be engineered for either hydrogel or silicone hydrogel soft contact lenses. It can manufactured by either cast molding or injection molding processes.
The PEG surface significantly decreases the formation of dry spots and the deposition of lipids and proteins which are part of the eye’s reaction to a foreign body.
OcuPEG chemistry deploys step-growth polymerization to achieve 100% reaction. In contrast, traditional chain growth polymerization leaves unreacted toxic monomers that must be removed by means of costly extraction processes during production.