Durasoft 2 ColorBlends from Wesley Jessen are designed for patients with dark eyes to create a natural and beautiful new look. They come in four colors, Blue, Green, Brown and Grey and are available in nearly every prescription.
Lens Material
The lens material, phemfilcon A, is a hydrophilic copolymer of 2-hydroxyethyl methacrylate and 2-ethoxyethyl methacrylate. The DURASOFT 2 ColorBlends (phemfilcon A) Hydrophilic Contact Lenses are made by modifying the uncolored DURASOFT 2 lens by affixing a colored pigment on that portion of the front surface of the lens which corresponds to the iris.
| Lens Parameters | |
| Base Curve: | 7.80 to 9.00 mm |
| Diameter: | 12.0 to 15.0 mm |
| Power Range: | -20.00 Diopters to +20.00 Diopters |
| Center Thickness: | Varies with power. Typically 0.07 mm for minus lenses; increases with increasing plus power. |
| Lens Properties | |
| Specific Gravity: | 1.176 |
| Refractive Index: | 1.440 |
| Visible Light Transmission: | 95% minimum |
| Water Content: | 38% |
| Oxygen Permeability: | 12.9 x 10-9 ml 02 cm / sec ml mm Hg @ 35 degrees C |