This design strategy trades off some of the benefits of seeing through a single zone in order to have a greater range of focus.

While earlier forms of IOLs were made with polymethylmethacrylate (PMMA) or acrylic glass, advances in technology have introduced the use of silicon and acrylic, which are soft and foldable.

These lenses can be inserted through a small incision and do not require stitches to heal.

Treatment with neodymium: YAG laser capsulotomy and fibrotic band release was successful.

We report 2 cases of Z syndrome with the Crystalens AT50SE and AT52SE intraocular lenses (Eyeonics, Inc.) after uneventful cataract surgery.

Patient resources on Intraocular lens Discussion groups on Intraocular lens Patient Handouts on Intraocular lens Directions to Hospitals Treating Intraocular lens Risk calculators and risk factors for Intraocular lens Editor-in-Chief: Kenneth J. Mary's Eye Center An intraocular lens (IOL) is an implanted lens in the eye, usually replacing the existing crystalline lens because it has been clouded over by a cataract, or as a form of refractive surgery to change the eye's optical power.

[1], Clinical Professor of Ophthalmology, UCLA, St.

The patient had implantation of a single-piece foldable acrylic intraocular lens (IOL) after phacoemulsification through a 3.0 mm superior corneal incision.

During cataract surgery, tthe natural lens of the eye (which is cloudy, causing poor vision) is replaced with an intraocular lens (IOL) implant.

Insertion of an intraocular lens for the treatment of cataracts is the most commonly performed eye surgical procedure.

The procedure can be done under local anesthesia with the patient awake throughout the operation.

Comparative, larger and long-term studies are required to prove the performance and stability of the devices.