Table 1. Properties of the Contact Lens Hydrogel Materials [47].
| Commercial name | Acuvue Advance | Acuvue Oasys | ProClear | PureVision |
| (US adopted name) | Galyfilcon A | Senofilcon A | Omafilcon A | Balafilcon A |
| Manufacturer | Johnson & Johnson | Johnson & Johnson | Coopervision | Bausch & Lomb |
| Water content | 47 | 38 | 60 | 36 |
| Principal Monomer | mPDMS + DMA + HEMA+ siloxane macromer+ EGDMA + PVP | mPDMS + DMA + HEMA + siloxane macromer + TEGDMA + PVP | HEMA + PC | NVP + TPVC + NVA + PBVC |
| FDA group * | V(I) | V(I) | II | V(III) |
| Low water | Low water | High water | Low water | |
| Non-ionic | Non-ionic | Non-ionic | Ionic |
*FDA (Food and Drug Administration) categorizes all silicone hydrogel contact lenses as group V, however it is more practical to use groups for conventional hydrogels to better understand their material properties. HEMA, Hydroxyethyl Methacrylate; PC, Phosphotidylcholine; NVP, N-Vinylpyrrolidone; TPVC, Tris(trimethylsiloxysilyl) Propyvinyl Carbamate; NVA, N-Vinyl Aminobutyric Acid; PBVC, Poly(dimethysiloxy)di (silylbutanol) Bis(Vinyl Carbamate); mPDMS, monofunctional Polydimethylsiloxane; DMA, N, N-Dimethylacrylamide; EGDMA, Ethyleneglycol Dimethacrylate; PVP, Polyvinyl Pyrrolidone; TEGDMA, Tetra-Ethyleneglycol Dimethacrylate