If you have cataract surgery but no IOL implant, your eye’s natural lens will be removed, and you will need to rely on glasses or contact lenses for clear vision. In some cases, a surgeon may elect to leave the eye without an IOL, such as in cases where the eye has an abnormality that makes implantation difficult or when a patient specifically requests not to have an IOL. In the company video you can see what thick glasses look like