Table 1 Properties of commonly used contact lens materials.
Material | Molecular formula | Procs/Cons | References |
|---|---|---|---|
PMMA | (C5H8O2)n | Outstanding optical, properties, low oxygen permeability, high rigidity and toughness | |
PET | (C10H8O4)n | Low glass transition temperature, low rigidity, low surface energy, hydrophobic, excellent chemical resistance, and thermal stability | |
PHEMA | (C6H10O3)n | Tunable mechanical properties, relatively high water content, and good chemical and thermal stability | |
LSR | (C2H6OSi)n | Flexibility and high oxygen permeability |