Soft contact lenses are made from which one of the following materials?
Hydroxy ethyl methaacrylate is a soft, flexible, water-absorbing, plastic used to make soft contact lenses. It is a polymer of 2-hydroxyethyl methacrylate (HEMA), a clear liquid component. Hard contact lenses are made from polymethyl methacrylate (PMMA) and Silicon.
Poly ethyl methaacrylate
Hydroxy ethyl methacrylate
Silicon
Glass