Table 1.
Properties of contact lens materials evaluated in the study.
| Proprietary name | ACUVUE® 2 | ACUVUE® OASYS™ |
|---|---|---|
| United States Adopted Name (USAN) | etafilcon A | senofilcon A |
| Manufacturer | Johnson & Johnson | Johnson & Johnson |
| Water content (%) | 58 | 38 |
| Oxygen Permeability (Dk) | 21 | 103 |
| Centre thickness (mm) - 3.00 Ds | 0.08 | 0.07 |
| Oxygen Transmissibility (Dk/t) at 35 °C | 25 | 147 |
| FDA group | IV | I |
| Surface treatment | None | No surface treatment. Internal wetting agent (PVP) that also coats the surface |
| Principal monomers | HEMA + MA | mPDMS + DMA + HEMA + siloxane macromer + PVP + TEGDMA |
mPDMS, (monofunctional polydimethylsiloxane); DMA, (N,N-dimethylacrylamide); HEMA, (2-hydroxyethyl methacrylate); PVP, (polyvinyl pyrrolidone); TEGDMA (tetraethyleneglycol dimethacrylate); MA, (methacrylic acid).