Procedures:Our Lens Implants


Implants - IOL - Refractive Lens Exchange

Recognizing that not all individuals who desire to reduce their dependence on glasses are candidates for LASIK, TLC Milwaukee/Hale Vision also offers education on these other options. In the paragraphs below, we will discuss these exciting vision correction technologies and the results they help achieve.
Intraocular Lens Implants
Lens implants (intraocular lens implant or IOL) have been the mainstay of cataract surgery since their creation in the 1940's by Dr. Harold Ridley. These lenses, when placed inside the eye after the natural lens has been removed, provide either good distance or near vision, depending on what has been selected by the patient. Recently, however, specialized implants have been developed that can provide both good distance and near vision following their insertion. Lens implants have now entered the realm of refractive surgery and can be divided into two main categories, pseudophakic and phakic.

Pseudophakic implants are those that are inserted inside the eye after the natural lens has been removed. These lenses have traditionally been used after the removal of a cataractous (cloudy) natural lens. These pseudophakic implants can also be used after removing the natural lens before it becomes a cataract, a process known as "clear lens extraction." While cataract surgery is typically covered by insurance, "clear lens extraction" procedures are not, as they are not correcting the reduced vision caused by a cataract. In this regard they would be similar to Lasik and other refractive procedures, being classified as elective.

Pseudophakic IOLs can be further divided into two distinct groups: monofocal and multifocal. Monofocal lenses have a single focus. This can be selected to corrected either distance or near vision but not both. Multi-focal lenses have, as their name indicates, more than one focus point and can be used to correct near and distance vision at the same time. Multifocal lenses can be further subdivided into "pseudoaccommodative" and "accommodative". Accommodation is the process by which the natural eye shifts focus from distance to near, allowing our eye to read our favorite book and suddenly look up to the see the noisy bird in the backyard. This "accommodation" is caused by a change in the shape of the flexible young natural lens initiated by a muscular function inside the eye. This function weakens with age as the lens becomes much less flexible and the muscles somewhat weaken.

Phakic implants are lens that are inserted inside the eye while the natural lens is left in place. These implants can be used to correct nearsightedness, farsightedness, and eventually astigmatism.

All implants can be modified to improve on their optical quality with the addition of filtration tints, special edging, wavefront adjustments, etc. This is an exciting field that will blossom over the next few years at a technologic rate not seen before. This is driven by the desire of our patients to retain high quality vision throughout their lives and not to settle for anything less than being the most functional and productive people they can be. These are our patients and we hope you are among them.

Information about the Visian ICL


The Visian lens by Staar Surgical recieved FDA approval for the treatment of myopia in 2005. This implant is inserted through a very small incision in the cornea and is placed behind the colored iris. Toric and Hyperopic models are available internationally and will hopefully be available in the US in the reasonably near future.
What Is the Visian ICL?
The Visian ICL is an Implantable Collamer Lens that works with the eye to correct vision. Unlike traditional contact lenses that go on the surface of the eye, the Visian ICL is positiioned inside the eye between the iris (colored part of the eye) and the natural lens where it stays indefinitely. If your vision changes dramatically, however, it can be removed from the eye.
Safe, Proven Procedure
The safely and effectiveness of the Visian ICL implantation procedure has been proven with over 75,000 implants worldwide as well as recent U.S. FDA approval. Unlike corneal refractive surgery, the Visian ICL does not permanently alter the structure of the eye. Instead, the phakic IOL is placed in the eye's posterior chamber, where it works with the natural lens to correct vision.
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20350 Watertower Blvd, Suite 200
Brookfield, WI 53045
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