Advanced Surface Ablation (ASA), an advanced version of PRK, is a permanent vision correction solution available for about 20 percent of patients who have special considerations, such as thin or irregular corneas, chronic dry eyes, high prescriptions, or who are in the military. For these patients, ASA is the best option for their journey toward visual freedom.
ASA corrects nearsightedness, farsightedness, and astigmatism while providing you with exceptional vision results. It is different from other LASIK alternatives, however, in that ASA recovery is not rapid and the eyes are uncomfortable during healing.
ASA is one form of PRK. Other versions such as LASEK and e-LASIK (epi-LASIK) are effective, but Dr. Brinton prefers ASA because he has observed quicker visual recovery with this surface ablation method compared with LASEK and e-LASIK.
Dr. Brinton is one of the most experienced ASA surgeons practicing in Missouri, and he can help you decide if ASA is right for you following your comprehensive Brinton Vision Ocular Analysis.
What are the benefits of ASA?
- Advanced Surface Ablation (ASA) provides excellent results when it is performed on the best candidates by the best ASA surgeons.
- ASA is a good option for people with thin corneas who are not good candidates for LASIK.
- It can enable people to enjoy activities they love, including very physical activities such as boxing or other contact sports, without the inconvenience of glasses and contacts.
- There is little downtime; most patients are back to what they enjoy doing within days.
- It is a more affordable option than the recurring costs of glasses and contacts, and there are several financing options available to fit ASA/Advanced PRK into your budget.
Like custom LASIK plus its other modern FDA-approved alternatives, ASA dramatically improves your vision by reshaping the cornea. Instead of using a laser to create a flap in the cornea, ASA involves the removal of the outer layer of the cornea, called the epithelium, to allow the laser eye surgeon to access the cornea, then reshape it to provide permanent correction of the corneal shape.
ASA is an effective procedural alternative to LASIK. Dr. Brinton has performed hundreds of these procedures across the country. He is one of the most experienced ASA surgeons in Missouri.
The main difference between ASA and LASIK is that unlike LASIK, an ASA procedure does not require creation of a flap in the top layer of corneal tissue. Instead, Dr. Brinton loosens and removes the thin layer of protective skin that covers the cornea. Then, he uses one of our excimer lasers, the same lasers used in LASIK, to reshape your cornea to provide you with better vision.
This is especially helpful for people who are not good candidates for LASIK, including those with thin corneas, or for patients who have had infections or scarring resulting from contact lens wear. It also means, however, that the healing time for ASA is longer than that of LASIK (days rather than hours).
ASA is similar to a procedure known as LASEK (sometimes called epi-LASIK or e-LASIK). During LASEK, the epithelial layer, or the clear skin over the eye, is loosened and pushed aside but is replaced at the end of the procedure. Think of it as being much like replacing a skin flap over a blister that has popped.
In contrast to LASEK, during ASA/Advanced PRK, the epithelium is completely removed. Patients wear a special contact lens to protect their cornea while the epithelium grows back. Dr. Brinton has found that his patients heal faster when the epithelial layer is removed.
Brinton Vision is the only refractive surgery center of its kind in St. Louis. We provide LASIK plus all of its six modern variations: ASA, Kamra Inlay, Raindrop Inlay, RLE, Visian ICL, and SMILE. To determine which procedure is best for your unique eyes and vision needs, we perform a comprehensive Brinton Vision Ocular Analysis (BVOA), which is one of the most thorough, modern examinations available in the world. Your BVOA will arm Dr. Brinton with the information he needs to determine if you are a candidate for vision correction, and if so, which procedure is the best fit for you.
In our St. Louis laser eye surgery center, ASA takes 15 minutes to complete, and the visual freedom our patients obtain can last a lifetime.
On the day of the procedure, plan to be at Brinton Vision for about two hours. You will need someone to drive you home, as your vision will likely be blurry immediately following the procedure.
Just as if you were going to an eye examination, you don’t need to wear special clothes or change your attire while you’re here. The only thing we’ll add to your outfit is a small, blue cap which you’ll wear during the procedure.
Prior to beginning, we will repeat some of the same tests that were conducted during your Brinton Vision Ocular Analysis so that Dr. Brinton has the most accurate information possible about your vision.
When you’re ready for the procedure, numbing eye drops will be administered so that you are comfortable during your ASA. In a quick 15-minute procedure, the cornea will be precisely and permanently reshaped to improve your vision once healing is complete.
After the procedure, you will receive easy-to-follow instructions and a written hand-out on how to use your eye drops. Our highly trained surgical technicians will answer any questions you may have, and Dr. Brinton will provide his personal phone number should you have concerns once you return home.
With ASA, you may need a couple of days of recovery time, as you can expect your eyes to feel irritated and uncomfortable. Within a week or so, you will notice what is often a dramatic improvement to your vision. In the meantime, we’ll follow you through your recovery and be there every step of the way.
The changes made to the cornea during ASA are permanent. However, there is a natural aging process called presbyopia that causes changes in the lens, located in the back of the eye. These changes, often referred to as “over 40 vision,” happen to every one of us, including those who have had ASA. These changes will likely alter your up-close vision so that you may one day require reading glasses. ASA does not hinder treatment for over 40 vision or cataracts, and does not cause or hinder treatment of eye diseases such as macular degeneration or glaucoma.