Author(s)

Liu Yuqi

Corresponding Author

Liu Yuqi

ABSTRACT

Contact lenses is a type of modern treatment for abundance of ophthalmic disfunction. With over 150 million global utilizers these days, the demand for contact lenses is massively. Four major contact lenses’ materials in the market currently are silicone-based hydrogel, hydrogel, PMMA (polymethyl methacrylate) and RGP (rigid gas permeable). To meet the abundance demand of consumers, each material have their different characteristics. The materials’ developments, evolution and applications are discussed in this review, along with their pros and cons on both chemical and physical properties.

KEYWORDS

Contact lenses, Silicone hydrogel, Hydrogel, Polymethyl methacrylate, Rigid gas permeable