Indiana Eye Clinic Doctor performing Refractive Vision Procedure

Refractive Vision Procedures

PRK or Photorefractive Keratectomy is one of the most time-tested laser vision correction procedures available. PRK is used mainly for patients with large pupils or thin corneas. The first step in PRK is to remove the epithelium, a thin layer protecting the cornea. Then the surgeon uses an excimer laser to vaporize a small amount of tissue from the top of the cornea. PRK avoids the risks of flap complications that may occur with a LASIK procedure. This procedure is often referred to as advanced surface ablation rather than PRK to reflect improvements in technique and lasers that have occurred over the last 20 years.

LASIK improves vision by reshaping the cornea to correct nearsightedness (myopia), farsightedness (hyperopia) and astigmatism. With LASIK, a thin layer of the cornea is cut with the microkeratome blade or femtosecond laser, then lifted to create a flap. Next the excimer laser sculpts the cornea with a cool, ultraviolet light. The flap is returned to its original position for healing.

LASEK, or Laser Assisted Subepithelial Keratomileusis, is a modification of the LASIK/PRK procedures. With LASEK, the outer layer of the cornea (the epithelium) is displaced so the central cornea may be exposed and treated with an excimer laser. After treatment, the tissue is allowed to heal and a clear contact lens may be worn to protect the eye for a few days to assist in recovery.

Advanced Surface Ablation
Advanced surface ablation is a term sometimes used to describe photorefractive keratectomy (PRK) utilizing newer techniques for removal of the epithelium and advanced custom lasers.

Clear Lens Extraction
Clear lens extraction, also called refractive lens exchange, replaces the natural lens with a replacement lens, usually an advanced technology or a multi-focal intraocular lens in patients wishing to correct high farsightedness, high nearsightedness or presbyopia without undergoing a corneal modification procedure such as Laser Vision Correction.

The procedure is the same as that used in cataract surgery; the difference being a CLE is performed to achieve refractive correction rather than cataract removal. CLE may offer clearer vision and greater focusing power.

You may be a candidate for clear lens extraction if you:

  • Want to reduce or eliminate your dependence on glasses or contacts
  • Have high myopia (nearsightedness), high hyperopia (farsightedness) or presbyopia, with or without cataracts
  • Have early symptoms of cataracts

Our Mission
Our Mission is to utilize the most sophisticated technology available to treat, reduce or eliminate your need for eyeglasses. Using high-resolution imaging of the eye in conjunction with wavefront aberrometry and other recent advances, we will create a customized treatment plan to suit your needs. We will not be satisfied until you are!

What You Need to Know
The treatment of refractive errors has evolved tremendously over the past decade. Advances in diagnostic instrumentation, laser technology and surgical technique have allowed us to greatly improve our outcomes and provide a much safer procedure. Since every patient’s needs are different, we invite you to have our doctors evaluate your eyes, discuss your specific goals and propose solutions that will work for you. We are very excited about the future of refractive surgery and look forward to sharing the benefits with you. Our patient coordinators would be happy to answer your questions and assist you in arranging a consultation

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