Intra-ocular Lenses (IOL) for cataract surgery are small lenses made of a soft polymer (like Acrylic) and are implanted inside the eye in place of natural opaque lens. The advantage of IOL is a clear wide field of vision and less dependence on spectacles. The soft material of IOLs allows them to be folded and inserted through a small incision of 2.2mm during cataract surgery . They open up inside eye in lens capsular bag to give clear vision. Some IOLs are non folding made up of PMMA which are used in larger incision cataract surgeries or secondary implants in previously operated aphakic eyes.
