They are often referred to as "premium" lenses because they are multifocal and accommodative and allow the patient to visualize objects at more than one distance, removing the need to wear eyeglasses or contact lenses. Premium intraocular lenses are those used in correcting presbyopia or astigmatism. Premium intraocular lenses are typically not covered by insurance companies as their additional benefits are considered a luxury and not a medical necessity.[10] An accommodative intraocular lens implant has only one focal point, but it acts as if it is a multifocal IOL.