A multifocal lens is a type of artificial lens (intraocular lens) that is implanted after the natural lens is removed, often due to cataracts or refractive errors. It is used to improve vision at various distances. The multifocal lens is designed to have multiple focal points. Unlike a monofocal lens, which only offers a fixed focus distance (usually for distance), the multifocal lens allows the patient to focus at different distances – similar to a natural lens. This provides the ability to see clearly, both near and far, and often at intermediate distances, without having to rely on glasses or contact lenses. Multifocal lens implantation is most often performed during cataract surgery or refractive lens replacement. The surgery is usually minimally invasive and requires only a short recovery time.