SofLens 66 Toric contact lenses from Bausch and Lomb are 1-2 week disposable lenses designed to be used by patients with astigmatism. Because they are replaced on a routine basis, SofLens 66 Toric lenses ensure that astigmatic patients fresh, clean lenses that will not irritate their eyes and aggravate their vision. SofLens disposable lenses are made with a light blue visibility tint to assist in locating the lenses in the solution, making them ideal for the first time contact lens user.
Lens Material
The lens is made from a copolymer of 2-hydroxyethyl methacrylate, Nvinyl pyrrolidone and 4-tertiary butyl-2-hydroxycyclohexyl methacrylate, and is 66% water by weight when immersed in a sterile solution of sodium chloride and a borate buffer.
| Lens Parameters | |
| Base Curve: | 8.5mm |
| Diameter: | 14.5mm |
| Sphere Powers: | +6.00 to -6.00D in 0.25D steps |
| -6.50D to -9.00D in 0.50D steps | |
| Center Thickness: | 0.190mm @ -3.00D (varies with power) |
| Lens Properties | |
| Specific Gravity: | 1.075 |
| Refractive Index: | 1.390 |
| Light Transmittance (tinted): | C.I.E. value--approximately 99% |
| Water Content: | 66% |
| Oxygen Permeability: | 32 x 10 x [-11][cm3O2(STP) x cm]/(sec x cm2 x mmHg) @35 degrees C (Polarographic Method) |