SofLens Multi-Focal contact lenses are 1-2 week disposable contacts designed by Bausch and Lomb to be worn as daily lenses for up to two weeks and then tossed in the trash. SofLens Multi-Focal disposable lenses are made to be worn by patients with presbyopia and are manufactured with a light blue tint to assist in locating the lenses in the solution.
Lens Material
The lens material, polymacon, is 2-hydroxyethyl methacrylate, and is 38.6% water by weight when immersed in a sterile saline solution. This lens is tinted blue with up to 100ppm of Reactive Blue Dye 246.
| Lens Parameters | |
| Diameter: | 14.5mm |
| Center Thickness: | 0.05mm to 0.50mm |
| Base Curve: | 8.5mm and 8.8mm |
| Powers (Spherical): | +6.00D to -10.00D (0.25D increments) |
Lens Properties | |
| Specific Gravity: | 1.12 |
| Refractive Index: | 1.43 |
| Light Transmittance: | C.I.E. value - at least 86% |
| Water Content: | 38.6% |
| Oxygen Permeability: | 8.4 x 10-11[cm3O2(STP) x cm]/(sec x cm2 x mmHg)@35 degrees C Polarographic Method (Boundary and Edge Corrected) |