An intraocular lens is routinely used in cataract surgery, where the natural lens is removed and replaced by a prosthetic implant.
Until relatively recently, patients with a high refractive error ( very short or long sighted) could only gain good vision by wearing spectacles with a strong prescription. Current laser treatments are not suitable for patients in this category.
PIOL's ( sometimes referred to as ICL's or implantable contact lenses) involve implanting a custom made intraocular lens implant into the eye. These lenses sit either between the iris and the cornea or just beneath the iris. In both cases the natural lens remains intact.
The Artisan™ lens will correct high degrees of short sightedness, long sightedness and astigmatism.