PTK (Photo-Therapeutic Keratectomy)
PTK uses the excimer laser to treat corneal surface diseases and scars. PTK is performed by removing the epithelium (or outer skin of the cornea) and then applying the laser to the surface of the cornea. The goal is to produce a smoother and clearer cornea, and not necessarily to reduce dependency upon eyeglasses or contact lenses. In contrast, the goal in PRK is to reduce dependency upon eyeglasses or contact lenses. PRK is often combined with PTK. PTK is considered a medical treatment and is often covered by insurance plans, whereas PRK is usually not covered.
PTK is for those of any age who have corneal surface diseases such as:
• Recurrent epithelial erosion syndrome.
• Shallow corneal scars.
• Corneal dystrophies, such as lattice dystrophy or granular dystrophy.
PTK may be combined with PRK.
What to expect on surgery day:
 You would have to arrive approximately fifteen minutes prior to your procedure. Once you have been checked in you may be offered a sedative to help you relax. You will then be prepared for surgery. The area around your eyes will be cleaned and a sterile drape will be applied around your eye. Anesthetic eye drops will be used to numb your eyes; no injections or needles will be used. When your eye is completely numb, an eyelid holder will be placed between your eyelids to keep you from blinking during the procedure.
Next your doctor will remove the epithelium, a thin layer of protective skin that covers the cornea. You will be asked to look directly at a target light while the laser reshapes your cornea. The laser will be programmed with the information gathered in your preoperative exam. The laser treatment will be completed in less than a minute or two, depending on the amount of correction needed.
Following your procedure, your eye(s) will be examined with a slit lamp microscope. Your eyes may be shielded for protection. Your vision may be blurry or hazy for one to five days. You will experience some discomfort as the epithelium heals and covers the treated area. Eye drops, pain medication and possibly a protective contact lens can be used to minimize this discomfort. Most patients resume normal activities within one to three days. Vision can fluctuate for up to six months.
Realistic Expectations:
The decision to have PTK is an important one that only you can make. The goal of any laser surgery is to improve your visual experience. However, we cannot guarantee you will have the results you desire. The vast majority of our patients are extremely happy with their vision after PTK.
PTK is a safe, effective and permanent procedure, but like any surgical procedure, it does have some risks. After PTK, almost everyone experience some visual side effects. These visual side effects are usually mild and temporary and have a tendency to diminish over time. But there is a slight chance that some of these side effects won’t go away completely, including light sensitivity, glare and halos. Serious complications to PTK are extremely rare.
Many patients will find that their eyeglasses or contact lens prescriptions will be different after the procedure.
After a thorough eye exam, you and your doctor will determine if PTK is an option for you. If you are a good candidate, you will be given additional information about the procedure that will allow you to make an informed decision about whether to proceed. Be sure you have all your questions answered to your satisfaction.
Alternatives to PTK
Manual Scraping without using the excimer laser.
Corneal Transplant
If you would like to learn more about vision correction procedures from sources other than our practice, we encourage you to link to a number of Web sites we feel provide factual and up-to-date information. You may also choose to make an appointment, attend a seminar or request additional information to learn more about this exciting procedure.
We offer a number of finance options and affordable payment plans. It is easy to apply online and receive credit approval before you schedule an appointment.
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