Optima Toric contact lenses from Bausch and Lomb are designed to correct the vision of patients suffering from astigmatism. The lenses are made using patented toric generating lathe technology and are used as daily wear lenses. The Optima Toric lens is manufactured with the comfort chamfer to give the patient a high level of comfort.
Lens Material
The lens material, (hefilcon B), is a hydrophilic random copolymer of 2-hydroxyethyl methacrylate and N-vinyl pyrrolidone.
| Lens Parameters | |
| Chord Diameter: | 14.0mm |
| Center Thickness: | 0.1mm to 1.0mm |
| Base Curves: | 8.3, 8.6 and 8.9mm |
| Powers: | (Spherical): +6.00D to -9.00D (Cylinder): up to 5.00D |
Lens Properties | |
| Specific Gravity: | 1.1 |
| Refractive Index: | 1.42 |
| Light Transmittance: | C.I.E. Y value - approximately 97%/td> |
| Water Content: | 45%. |