Durasoft 2 Optifit Toric (MTO) contact lenses from Wesley Jessen are manufactured to correct the vision of patients suffering from astigmatism and are made-to-order lenses. The lenses are designed to be worn as daily wear lenses for up to a year. The lenses are made with a visible tint to help you locate your lenses in the solution and will not change the color of your eyes.
Lens Material
The lens material, phemfilcon A, is a hydrophilic copolymer of 2-hydroxyethyl methacrylate and 2-ethoxyethyl methacrylate.
| Lens Parameters | |
| Base Curve: | 7.80 to 9.50 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. |
| Cylinder: | -0.75 Diopters to -9.75 Diopters |
| Axis: | 0 deg. to 180 deg. in 1 deg. steps |
| Prism Ballasted |
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 deg. C |