Bifocal And Multifocal Contact Lenses

Bifocal contact lenses have been around for many years, but until recently they weren t very popular. Older bifocal designs didn t satisfy many people, leading to frustration among wearers and prescribers alike. Today, new technology has produced more successful designs, as well as a greater variety of designs. So if one design doesn t work for you, another might.• Bifocal and multifocal contact lenses are designed to provide clear vision at all distances for presbyopia..• Bifocal contacts lenses have two prescriptions in the same lens. Multifocal contact lenses have a range of powers (similar to progressive eyeglass lenses) in each lens. Different bifocal and multifocal contact lenses work in different ways, depending on the design of the lens. The designs fall into two basic groups: Simultaneous vision designs and Segmented designs.• Aspheric Multifocal Contact Lenses• The design of aspheric multifocal contact lenses is similar to that of progressive eyeglass lenses — there s a gradual change in power from far to near, with no visible lines in the lenses. Unlike eyeglasses, however, aspheric multifocal contacts are simultaneous vision lenses, so your visual system must learn to select the proper lens power for the moment.A number of aspheric multifocal contacts are now available as daily disposable lenses for the ultimate convenience in contact lens wear for presbyopes. Segmented Bifocal Contact Lenses:Unlike soft multifocal contact lenses (which move with your eyes), segmented GP bifocal contacts can be designed to stay in a certain position while your eye moves behind the lens. Monovision involves using single-vision lenses to put your near prescription on one eye and your distance prescription on the other.