Refractive Lens Exchange (RLE) or Clear Lens Lensectomy is essentially the same procedure as a cataract removal. The eye's natural lens (crystalline lens) is removed and replaced with an implant lens called an Intraocular Lens (IOL) thus reducing or eliminating the need for glasses. This procedure is for patients who are not eligible for LASIK because of high degrees of myopia or hyperopia and who are already presbyopic