Cooper Clear FW contact lenses from CooperVision are spherical lenses designed to be worn as frequent wear lenses for up to a month.
Lens Material
The lens material, tetrafilcon A, is a hydrophilic random terpolymer of 2-hydroxyethyl methacrylate, N-vinyl-2-pyrrolidone and methylmethacrylate joined in a three dimensional network of terpolymer chains by divinylbenzene cross links.
| Lens Parameters | |
| Base Curve: | 8.4 and 8.7 mm |
| Diameter: | 14.4 mm |
| Power Range: | -0.25 to -10.00 |
Lens Properties | |
| Refractive Index: | 1.43 |
| Light Transmittance: | 97% |
| Surface Character: | Hydrophilic |
| Water Content: | 42.5% |
| Oxygen Permeability: | 9.3 x 10-11 (cm2/sec) (ml 02/ml x mmHg) at 35 deg. C |