What are Implantable Collamer Lenses (ICLs)? Implantable Collamer Lens (ICL) surgery is the most commonly performed type of Phakic Intraocular Lens Implantation. The procedure involves implanting a small, thin lens behind the iris and in front of the natural lens of the eye. Modern ICLs are extremely versatile and can treat almost every possible prescription. For example, in the UK the lens is available for short-sightedness from -0.50 to -18.00 D, long-sightedness from +0.50 D to +10.00 D and astigmatism…