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EVO Visian ICL (Implantable Collamer Lens) Surgery in Chicago

The Kraff Eye Institute is based in the heart of downtown Chicago, located just one block west of Millenium Park. For over 50 years, the doctors at the Kraff Eye Institute have been dedicated to providing state-of-the-art treatments to help patients see the world more clearly. Dr. Colman Kraff is a pioneering force within the ophthalmology community and the most skilled surgeon performing ICL procedures in Chicago. With over 3 decades of surgical experience, patients can rest assured that Dr. Kraff will assess and treat all their visual needs with the utmost care.

Implantable Collamer Lens Procedure

The EVO Visian ICL, also known as the Implantable Collamer® Lens, is a type of refractive procedure to help correct common visual problems, such as myopia and astigmatism. Simply put, the procedure can be described as additive vision correction. Unlike other procedures, the EVO Visian ICL procedure does not remove corneal tissue, but works in harmony with your natural eyes. In the ICL procedure, Dr. Kraff a surgeon is inserting a biocompatible synthetic lens into the eye. The ICL lens sits between the iris (the colored part of the eye) and your natural crystalized lens.

The ICL lens has a prescription, which is calculated beforehand by Dr. Kraff. The prescription is specific to each eye’s exact visual needs. An ICL procedure improves vision without altering the cornea, as we do not remove tissue from the cornea like we do with LASIK or PRK. For some patients, this is another viable option when they don’t qualify for a Laser Vision Correction procedure.

What to Expect

An ICL procedure is performed one eye at a time, with the 2nd eye being treated a couple weeks after the 1st. The surgery is done at an outpatient surgery center and the patient is under local anesthesia during the procedure. You should plan on being at the surgery center for a couple of hours and you will need someone with you to help get you home. Many patients resume their normal activities within a couple of days following the procedure.

Benefits of the EVO Visian ICL

The EVO Visian ICL procedure is a safe and effective treatment to help lessen some patients’ dependency on glasses or contact lenses. Some of the key benefits of the EVO Visian ICL are:

  • 1,000,000 procedures worldwide;
  • Excellent night vision;
  • 99,4% patient satisfaction;
  • Does not induce dry eye syndrome;
  • A removable option; 
  • In harmony with your natural eyes;
  • UV protection.


All surgical procedures come with potential risks. Although very rare, risks include, but are not limited to, infection, retinal detachment, double vision, sensitivity to glares and halos, and lens dislocation. When here for your initial consultation, Dr. Kraff will discuss risks, in detail, with the patient to help so that they can make an educated decision as to whether they should move forward with surgery.

Why our clients think that we are the best EVO Visian ICL doctors in Chicago

For over 3 decades, Dr. Colman Kraff has been committed to providing his patients with the safest and most effective surgery options. Dr. Kraff has worked alongside the FDA to help advance treatment options for a wide range of refractive errors. You will not meet with an ophthalmologist, or surgeon, who has more experience than Dr. Kraff.

Reviews For Implantable Collamer Lens (ICL) Procedure At Kraff Eye, Chicago


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About Your Doctor

Dr. Colman Kraff has been at the forefront of LASER eye surgery since the beginning. Having personally performed over 70,000 LASER procedures, he is one of the most reputable and skilled surgeons anywhere.

Dr. Kraff works closely with industry manufactures as a principle investigator and consultant. As a result, he actively participates in the most recent FDA trials to ensure the best and most precise technology is available to patients.

Dr. Kraff was born and raised in Chicago. He enjoys running and photography, as well as, spending time with his wife, children, and granddaughter.


What is the EVO Visian ICL Lens?

Expand F.A.Q.

EVO Visian ICL is an Implantable Collamer™ Lens that corrects common vision problems such as nearsightedness (myopia) and astigmatism. Collamer is a biocompatible material that works in harmony with the eye. The lens, which is slightly smaller than a typical contact lens, is implanted in the eye during a 20 to 30 minute procedure. Unlike laser vision correction surgeries that permanently change the shape of your cornea, the EVO Visian ICL procedure is additive, meaning that no corneal tissue is removed. Worldwide, more than 1 million EVO Visian ICL lenses have been implanted.

What are the Benefits of EVO Visian ICL?

Expand F.A.Q.

EVO Visian ICL offers many benefits for patients who are candidates for the ICL procedure and are seeking a vision solution that allows them the freedom of less dependence on glasses or contact lenses. The advantages of EVO Visian ICL include:

  • Sharp, clear vision
  • Excellent night vision
  • Does not cause dry eye syndrome
  • Quick procedure and recovery
  • No removal of corneal tissue
  • Removable by your doctor
  • Protection from UV rays

How is the EVO Visian ICL Lens Procedure Performed?

Expand F.A.Q.

Vision correction with the EVO Visian ICL is an outpatient procedure that typically takes 20 to 30 minutes. After an initial exam with your ophthalmologist to determine that the EVO ICL is right for you, you will schedule your procedure. On the day of the procedure, your eyes will be numbed with an anesthetic eye drop and your refractive surgeon will implant the ICL between the iris (colored part of the eye) and the natural lens. Your surgeon will likely schedule a follow-up appointment the same day as the procedure.

Who is a Candidate for Vision Correction with EVO Visian ICL?

Expand F.A.Q.

People who want a flexible and biocompatible vision correction option, as well as many patients who are not candidates for laser vision correction, find that Visian EVO ICL is the right procedure for them.

Ideal candidates for EVO Visian ICL:

  • Are between the ages of 21 and 45
  • Are seeking a vision correction solution for moderate to severe nearsightedness (with or without astigmatism)
  • Have a stable prescription that has not changed within the last year
  • Have good ocular health with no history of glaucoma, iritis, or diabetic eye disease

Can the EVO Visian ICL Lens be removed?

Expand F.A.Q.

Yes; the EVO Visian ICL is intended to provide permanent vision correction, but it can be removed or upgraded by your surgeon.

Will I be able to feel the EVO Visian ICL Lens?

Expand F.A.Q.

No, patients should not feel the lens as it does not adhere to any structures within the eye and does not move once in place.

Will other people be able to see the EVO Visian ICL Lens?

Expand F.A.Q.

No, the Visian EVO lens is placed behind your iris where only your eye doctor will be able to detect it.

Are there any risks with the EVO Visian ICL Procedure?

Expand F.A.Q.

Any medical procedure has certain risks associated with it. Potential complications of the EVO ICL procedure, although rare, include inflammation, an increase in eye pressure, or the need for an additional procedure, like an ICL exchange. While these potential risks are mitigated as much as possible, they can all typically be addressed early and without long-term side effects.

Important Safety Information

The EVO Visian ICL lens is intended to correct/reduce nearsightedness between -3.0 D up to -20.0 D and treat astigmatism from 1.0 D to 4.0 D. If you have nearsightedness within these ranges, EVO Visian ICL surgery may improve your distance vision without eyeglasses or contact lenses. Because the EVO Visian ICL corrects for distance vision, it does not eliminate the need for reading glasses, you may require them at some point, even if you have never worn them before. Since implantation of the EVO Visian ICL is a surgical procedure, before considering EVO Visian ICL surgery you should have a complete eye examination and talk with your eye care professional about EVO Visian ICL surgery, especially the potential benefits, risks, and complications. You should discuss the time needed for healing after surgery. Complications, although rare, may include need for additional surgical procedures, inflammation, loss of cells from the back surface of the cornea, increase in eye pressure, and cataracts. You should NOT have EVO Visian ICL surgery if your doctor determines that 1) the shape of your eye is not appropriate, 2) you do not meet the minimum endothelial cell density for your age at the time of implantation, 3) you have moderate to severe glaucoma, 4) your vision is not stable; or 5) if you are pregnant or nursing.

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