Multifocal Lens Implants

Multifocal Lens Implants A multifocal lens implant is a type of Intraocular lenses (also called IOLs). IOLs are implantable lenses that replace the lens of the eye when it is removed during cataract surgery. Originally, IOLs were monofocal, or corrective of vision at one distance only, whether near, intermediate, or far. Since they correct vision at just one distance, glasses are still often needed. If you need cataract surgery and wish to be rid of glasses afterward, a multifocal IOL may be right for you. ReSTOR® AcrySof® ReSTOR® multifocal intraocular lenses are uniquely designed to improve vision at all distances, giving cataract patients the opportunity to experience life without glasses. ReSTOR® is modeled after microscope and telescope technology and focuses at both near and far distances, decreasing your dependency on glasses. AcrySof® ReSTOR® Intraocular Lens was designed to provide quality near to distance vision by combining the strengths of apodized diffractive and refractive technologies. Apodized Diffractive Apodization is the gradual tapering of the diffractive steps from the center to the outside edge of a lens to create a smooth transition of light between the distance, intermediate and near focal points. Diffraction involves the bending or spreading of light to multiple focal points as it passes through the lens. On the AcrySof® ReSTOR® IOL, the center of the lens surface consists of an apodized diffractive optic. This means that the series of tiny steps in that center area work together to focus light for near through distance vision. Refractive Refraction involves the redirection of light passing through the lens, to focus on the retina. The refractive region of the AcrySof® ReSTOR® IOL bends light as it passes through the lens to a focal point on the retina. This outer ring of the AcrySof® ReSTOR® IOL surrounds the apodized diffractive region and is dedicated to focusing light for distance vision.