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    PRK Advantages and Disadvantages

    Last updated 5 years ago

    PRK Advantages

    • Better for thin corneas
    • Good for low to high levels of myopia, hyperopia and/or astigmatism
    • Good for people in military service
    • No flap complications

    PRK  Disadvantages

    • Longer healing time
    • Longer time for results

    Photorefractive Keratectomy is a less used procedure due to LASIK. However, it is still the procedure used when LASIK is not the best choice due to eye irregularities. As with all laser surgery, there is always a risk and side effects such as ongoing light sensitivity and halos. It is important to talk with your doctor about the risks in your specific case.

    If you’re interested in learning more about LASIK eye surgery, then call Clear Advantage at (603) 379-6817 now. We use the latest ground-breaking technology and equipment so that we can provide the best eye care for our patient’s eyes. Visit our website to get more information on how we can improve your vision and the way you experience your life.

    The PRK Process

    Last updated 5 years ago

     

    Photorefractive Keratectomy involves, much like LASIK, the reshaping of the cornea. Unlike LASIK which involves removing the inner tissue of the cornea, PRK applies laser energy to change the surface of the cornea. Before surgery you will need to have a careful review of your health and eye history.   During your initial evaluation, you will have a refraction to measure your actual prescription. This will generally be performed with dilating eye drops; in order to get the best measurements. The shape of the surface of your eyes will be mapped using an instrument called a corneal topographer, also known as an Orbscan. Finally the thickness of your cornea will be measured using an instrument called a pachymeter.

     

    On your day of surgery, the surgeon will clean the area around your eyes with a hygienic but gentle cleansing pad. A series of antibiotic drops will be placed into your eyes in order to get them ready for your treatment and remove any germs in your eye, which will help to prevent any possibility of infection. Other drops will be placed in your eyes to lightly numb the cornea so that you are comfortable during your treatment.

    After you recline on the bed under the laser, an eyelid holder called a speculum, is gently placed between your eyelids to remind you not to blink. Next the epithelium, a thin, protective layer that covers the cornea, is removed. Since you have had numbing drops placed in your eyes, this will not be uncomfortable, but will feel like a slight pressure around your eyes. The surgeon will instruct you to look at a small light during your procedure. Don't worry if you cannot stay perfectly steady-just do your best. Today's laser technology uses a tracking system which will actually follow your eye movements if you can hold pretty still during your procedure.

    To correct nearsightedness, farsightedness or astigmatism, your surgeon will use an Excimer laser. The Excimer laser is programmed based on calculations made from the measurements taken during your consultation. The laser delivers the exact correction needed and sends tiny spots of light beams to certain predetermined positions on your cornea in order to change the shape to what is required for you to see well. The surgeon has full control of the laser, and monitors the position of the laser on the cornea and the tracking system monitoring the position of your eye in order to make sure the beam is in the correct place. The application of the laser usually takes 1-2 minutes per eye depending on the amount and complexity of the correction that you need.

    A soft bandage contact lens may be placed over the eyes to help the epithelium heal. Additional eye drops may be placed in your eyes as the procedure is finished just to give you some added comfort and protection and to help your eyes heal quickly. Sleeping goggles will be supplied to prevent you from rubbing your eyes. Pay careful attention to the detailed instructions your doctor gives you regarding additional drops to use at home and when to return for your follow up visits, which are generally scheduled at 1-day, 3-days, 1-week, 1-month, 3-months and 1-year.

    You will need someone to drive you home on the day of surgery. We encourage you to go home on the day of surgery and take a long nap. When you awaken you will notice several things: First, you will notice a dramatic improvement in your vision. It will improve each day as your eyes continue to heal. You should expect to feel some mild "grittiness" like a little sand or dust has gotten into your eyes for a day or so. This is normal. As your eyes heal it is normal and expected to be a little sensitive to light and perhaps see some glare or even haloes around lights at night. This too will diminish as your eyes heal.  Acular eye drops will be supplied on surgery day to help alleviate this scratchy feeling.

    If you’re interested in learning more about LASIK eye surgery, then call Clear Advantage at (603) 379-6817 now. We use the latest ground-breaking technology and equipment so that we can provide the best eye care for our patient’s eyes. Visit our website to get more information on how we can improve your vision and the way you experience your life.

     

    What is Photorefractive Keratectomy?

    Last updated 5 years ago

     

    Photorefractive Keratectomy, or PRK, is a type of laser eye surgery for people who suffer from nearsightedness (myopia), farsightedness (hyperopia) or astigmatism. It is similar to LASIK in that it involves using the Excimer laser to reshape the cornea to minimize or eliminate your dependence on eyeglasses or contact lenses.  It is different in that unlike LASIK, the eye surgeon doesn't need to use a microkeratome to make a flap, but instead is able to apply the laser directly to the surface of the cornea to achieve the desired vision correction effect. PRK is better suited for people with thin corneas or certain other corneal abnormalities where using a microkeratome might not be the best choice. Also it may be preferred for those in the United States military where PRK is the approved procedure for those in active combat and certain other positions. PRK has been approved by the FDA for myopia since 1995 and for hyperopia since 1998 and enjoys an excellent safety profile. Since it does not use a microkeratome, there is no risk of flap complications.

    In PRK to correct myopia, the steep cornea is made flatter by removing tissue from the center of the cornea. To correct hyperopia, the flat cornea is made steeper by removing tissue from the outer edges of the cornea. To correct astigmatism, the cornea is transformed into a more spherical shape.

    If you’re interested in learning more about LASIK eye surgery, then call Clear Advantage at (603) 379-6817 now. We use the latest ground-breaking technology and equipment so that we can provide the best eye care for our patient’s eyes. Visit our website to get more information on how we can improve your vision and the way you experience your life.

    FT MEDICAL ASSISTANT / OPHTHALMIC & SURGICAL TECHNICIAN

    Last updated 5 years ago

    Premiere LASIK practice seeking Full-Time Ophthalmic Technician for Portsmouth NH office.  Duties: administer tests, operate and maintain testing equipment, direct patients during various exams and assist with more complex tests (i.e. refractions). Coordinate follow-up care, order clinic supplies and assist with educating patients on pre and post-operative instructions.  Reasonable experience in the medical field is required.  Will consider training a medical assistant who is interested in a career in ophthalmic and surgical practices. 

        THE IDEAL CANDIDATE:  Personality for this position is 99% of the job.  Seeking personable, intelligent and  positive professional who enjoys working with people.  Reasonable experience in the medical field is required.  Will consider training a medical assistant who is interested in a career in ophthalmic and surgical practices.  Should have good written and verbal skills.

    If you are interested in this opening, please respond and/or send your resume to:

      

    Holly Venetos, Center Director

    Clear Advantage Vision Correction Center

    155 Borthwick Ave, Suite 200E

    Portsmouth, NH 03801

    Fax:  603-501-5001

    Email:  HollyV@GlobalV.com

    www.ClearAdvantageLaser.com

    Implantable Contact Lens

    Last updated 5 years ago

    The latest in eye surgery is the Visian Implantable Contact Lens or ICL, which was originally designed for patients who were not candidates for LASIK surgery due to high myopic (nearsighted) prescriptions.  But the success of the Visian ICL implant has resulted in an increased interest from candidates who are considered good choices for LASIK. 

    The Visian ICL is an Implantable Collamer Lens that works with the eye to correct patients with moderate to severe nearsightedness. Unlike traditional contact lenses that go on the surface of the eye, the Visian ICL is positioned inside the eye between the iris and the natural lens where it stays indefinitely. With a satisfaction rate of over 99% many of our patients choose the Visian ICL to get the freedom from their contact lenses and glasses that they’ve always desired.

    The Visian ICL is the procedure of choice for patients who need and expect higher quality results in performance and safety. In fact, the US Military has embraced the Visian ICL because of the reliable visual clarity it achieves.   Much like the recovery with laser vision procedures, results are immediate with the Visian ICL.

    Limitations of LASIK – Advantages of an ICL

    Ranges of nearsightedness – Most surgeons agree that LASIK should not be performed on anyone who has a prescription over -10.0.  The ICL can be used for anyone between the ages of 18 and 45 with -5.00 to -20.00 diopters of nearsightedness.

    Glare and Halos – Changing the natural curve of the cornea with LASIK may induce aberrations that can lead to glare and halos in some patients.  Glare and halos are less common with ICL’s because they cause less aberration in the eye.

    Medical Contraindications – Patients with lupus, Crohn’s disease, rheumatoid disease and dry eye syndrome are at a higher risk for complications with LASIK procedures, but are at minimal risk of worsening conditions after an ICL.

    Why choose Clear Advantage for your Visian ICL procedure?

    Dr. N. Timothy Peters is the first surgeon in New Hampshire to be certified to implant the Visian ICL. There have been over a quarter of a million Visian ICL procedures performed worldwide.

    Clinical Trial of Visian ICL for Moderate to High Myopia: Three-Year Follow-Up
    In the 2004 ICL clinical trial three-year follow-up reviewed by the FDA "support the safety, efficacy, and predictability of Visian ICL surgery to treat moderate to high myopic errors."1

    The three-year data, based on the assessment of 526 eyes of 294 patients, also produced the following refractive results:

    • 99 percent of patients were satisfied/very satisfied with their results.
    • 98.3 percent of patients had uncorrected visual acuity of 20/40 or better.
    • Once vision was corrected, the correction was stable and did not change over the follow up period.
    • Additionally, the incidence of glare, halos, double vision, night vision problems, and night driving difficulties remained unchanged from before surgery.

Do you like Clear Advantage Vision Correction Center?


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