Optima 38 / SP contact lenses from Bausch and Lomb are designed for patients suffering from hyperopia or myopia.  The lenses have increased mid-peripheral thickness to create good handling across the power range.  To make certain of good on-eye lens centration, the rear surface is lathe cut.  Optima 38 / SP lenses are made with a light visible tint to help you locate your lenses in the solution.

Lens Material
The lens material (polymacon), is a hydrophilic polymer of 2-hydroxyethyl methacrylate, and is 38.6% water by weight when immersed in saline solution. These lenses are hemispherical flexible shells.