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Characterization of selected hydrogel contact lenses as per FDA classification.
| FDA Group | Manufacturer | Polymer | Water Content | Ionic |
|---|---|---|---|---|
| 1 | Acuvue Oasys 1-Day with Hydraluxe | Senofilcon A | 38% | No |
| 2 | Focus Dailes All Day Comfort | Nelfilcon A | 69% | No |
| 3 | Bausch + Lomb PureVision | Balafilcon A | 36% | Yes |
| 4 | Daily FitViev | Methafilcon A | 56% | Yes |
