Laser Vision Corrections
Laser vision correction (LVC) is a procedure that improves vision by using a laser to permanently change the shape of the cornea. Often referred to as LASIK, or Laser in-Situ Keratomileusis, utilizes an excimer laser to reshape the corneal tissue under a protective flap of the cornea. The excimer laser is a 'cool' laser and does not cause thermal damage to the surrounding tissue. This, combined with its computer-controlled accuracy allows the doctor to deliver consistent and predictable results in treating short sightedness, long sightedness and astigmatism.
The LASIK Procedure Step 1, 2, 3, 4... Done! If I had know the procedure was this easy, I would had it done long ago...
- A thin flap is created with the use of the microkeratome.
- The flap is then lifted upwards and folded back to expose the internal part of the cornea called the stroma.
- Laser is then applied to reshape the cornea thus changing its focusing power.
- After the laser is applied, the corneal flap is replaced over the treated corneal stroma.
- The cross section view shows the treated cornea and the flap back in place.
Why Advanced CustomVue?
If you're one of the many people who have been waiting for laser vision correction to be perfected, your time has come. VISX's Advanced CustomVue™ procedure offers safety, precision and exceptional results to patients who are nearsighted or farsighted and those who have mixed astigmatism. Even patients who are extremely nearsighted may now be eligible for the Advanced CustomVue procedure.
In 1995, VISX introduced the first laser vision correction.
In 2006, VISX reinvented laser vision correction, Advanced CustomVue™ . . . And Centre for Sight Laser Eye Centre, is the 1st in Malaysia introducing Advanced CustomVue™ . . .
It's time to take another look at Laser Vision Correction.
No one has eyes like yours.
That's why Centre for Sight is proudly to offer Advanced CustomVue™ . . . Don't wait another day. Call today for your free consultation!
Advanced CustomVue™ combines a number of technology innovations into a laser vision correction procedure individually customized to each eye.
WaveScan WaveFront™ System with Fourier Algorithms
Your eyes are as unique as your fingerprint. Advanced CustomVue addresses your eyes' distinct characteristics using the WaveScan WaveFront System and VISX™ Technology's exclusive mathematical rules (Fourier algorithms) to capture each eye's unique imperfections with far greater accuracy than ever before possible. Like a topographical map showing the surface features of a landscape, WaveScan™ technology creates a detailed map of your eye's optical system. The system translates that information into completely personalized digital treatment instructions and sends them directly to the STAR S4 IR™ Excimer Laser System.
VISX Iris Registration
The Advanced CustomVue procedure provides a new level of precision in treatment alignment with VISX Iris Registration, the first FDA-approved, fully automated method of aligning treatment. It's normal for the pupil to shift positions from the time an eye is measured to the time of treatment. Iris registration technology centers the treatment correctly, regardless of the amount of time between WaveFront measurement and laser treatment and independent of changes in the pupil center from measurement to treatment.
VISX STAR S4 IR™ Excimer Laser System
The VISX STAR S4 IR Excimer Laser system represents the most advanced laser technology platform available today. Integrating data collected by the WaveScan WaveFront System, the STAR S4 IR utilizes VISX Iris Registration and other exclusive VISX technologies to deliver advanced precision and enhanced safety. The Advanced CustomVue procedure is not affected by the patient's eye movement during treatment and minimizes correction to only those areas of the cornea that require reshaping.
Frequently Asked Questions
What is laser vision correction?
Laser vision correction (LVC) is a procedure that improves vision by using a laser to permanently change the shape of the cornea. Often referred to as LASIK (an acronym for the medical term laser assisted in-situ keratomileusis), it is the most commonly performed laser vision correction procedure and is an effective treatment for a wide range of vision problems.
Why do people have LVC procedure?
Research has shown that there are four main reasons that people choose to have LVC. They are:
- Life simplification: No longer having to deal with glasses or contacts
- Independence: Freedom from dependence on glasses and/or contacts
- Performance: Ability to perform better in sports-related activities
- Ability to see 24/7 when it counts: Better vision for all occasions (e.g., at a play, evening out, playing golf)
- Are you a suitable candidate for Laser Refractive Correction?
The ideal candidate must satisfy the following criteria:
- Be at least 21 years of age
- Have had stable vision for at least one year (stable refractive prescription of + 0.5 Diopter)
- Healthy cornea
- Healthy eye that is free from any diseases
- Good general health
- Must not be pregnant or nursing
See our Doctor for more information and to determine if you are a candidate for the Laser Vision Correction.
- What is VISX™ Advanced CustomVue Laser Vision Correction?
Advanced CustomVue is an individualized laser vision correction procedure that combines the WaveScan WaveFront™ System and the VISX STAR S4 IR™ Excimer Laser with Iris Registration (IR), enabling a doctor to measure unique imperfections in a person's vision and design an individualized treatment. Iris registration technology increases accuracy and precision by centering the treatment correctly, regardless of changes in the pupil center from measurement to treatment.
- How does the Advanced CustomVue procedure work?
First, the WaveScan technology precisely measures each eye's unique imperfections to create an individualized treatment plan. This information is then digitally transferred to the VISX STAR S4 IR Excimer Laser System, where it is used to deliver the treatment to your eyes.
- How does Advanced CustomVue individualized laser vision correction differ from standard LASIK?
Advanced CustomVue uses WaveScan WaveFront technology with VISX-exclusive algorithms (mathematical guidelines) to measure the unique imperfections in your vision 25 times more precisely than the measurement method used in standard LASIK. The VISX STAR S4 IR Excimer Laser with Iris Registration (IR) also includes a number of technology advancements that improve treatment accuracy and precision.
- What is Iris Registration Technology?
It's normal for a patient's pupil to shift positions from the time their eye is measured and the time of treatment. Iris registration technology centers the treatment correctly, independent of changes in the pupil center from measurement to treatment.
- Is the Advanced CustomVue™ procedure approved by the FDA?
Yes, Advanced CustomVue is FDA-approved to potentially treat more than 94 percent* of the eligible population, including patients with nearsightedness, farsightedness (hyperopia) and astigmatism. Advanced CustomVue is the first FDA-approved WaveFront-guided treatment for high myopia (from -6 to -11 Diopters).
*Market Scope Data, U.S. Vision Population, 21 Years of Age or Older, 2005
- How can Advanced CustomVue treat nearsightedness, farsightedness and astigmatisms?
All three vision problems are most often caused by imperfections in the cornea. Advanced CustomVue uses the WaveScan WaveFront™ System to measure those distinct imperfections, creating a map of each eye. The WaveScan™ System translates these detailed digital measurements into a set of treatment instructions, which it transmits to the laser. The laser reshapes the cornea to improve vision.*Market Scope Data, U.S. Vision Population, 21 Years of Age or Older, 2005
- How accurate is WaveScan technology?
WaveScan technology measures imperfections in an individual's vision 25 times more precisely than standard methods used for glasses and contact lenses. Before WaveScan, LASIK surgery was performed using the same measurement methods doctors use when prescribing glasses and contact lenses.
- What makes the Advanced CustomVue procedure different than other procedures?
The combination of WaveScan WaveFront System measurement technology and the sophisticated capabilities of the VISX STAR S4 IR™ Excimer Laser System enable doctors to calculate a more precise and individualized treatment.
- How is the Advanced CustomVue procedure able to treat conditions like mixed astigmatism and high myopia where other systems can't?
The precision enabled by the WaveFront WaveScan System's measurements is made possible by the STAR S4 IR™ Excimer Laser System. The laser system includes Variable Spot Scanning (VSS™) technology, along with Variable Repetition Rate (VRR™) technology, and Iris Registration, ensuring the laser can perform the treatments indicated by the WaveScan System's measurements.
- What can the Advanced CustomVue procedure do for me?
As shown in FDA clinical studies, Advanced CustomVue can produce better vision than possible with glasses or contact lenses. Though statistical results vary by the type of condition being treated, more than 95 percent of all study participants – regardless of condition treated – could see well enough to pass a driving test. More detailed information on outcomes can be found in the Patient Information Booklet and Patient Information Sheet.
- How does the Advanced CustomVue™ procedure affect night vision?
FDA clinical studies showed that three times as many participants were very satisfied with their night vision after treatment compared to their night vision with glasses or contact lenses before treatment. See your eye doctor for more information.
- How can I get more information about Advanced CustomVue?
Come to Centre for Sight Laser Eye Centre, discuss the procedure with our doctor and be sure to review the Advanced CustomVue Patient Information Booklet for your condition. You can also find out more information by visiting www.personalbestvision.com.
Advanced Surface Ablation (ASA)
Advanced Surface Ablation is a relatively new laser vision procedure that has additional safety features over LASIK making it an ideal alternative for some patients. Instead of cutting a flap on the front of the cornea, the surface skin cells (epithelium) are loosened with a diluted alcohol solution and removed. The corneal surface is then treated with the laser and covered with a bandage contact lens.
The margin of safety with ASA may be greater than that with LASIK as the need for a microkeratome is eliminated, so there's no risk of flap complications. You do not need to worry about rubbing your eye or bumping it after surgery and having the LASIK flap slip or wrinkle, because there is no flap. The nerve endings that control tear secretion are not cut, so there is less of a problem with dry eye after surgery.
The benefit you gain from ASA:
- No flap-related complications
- Suitable for patients who do not like the idea of having the corneal cut
- Corneas unsuitable for LASIK such as corneas with the following problems :
- Too thin in relation to the amount of tissue ablation needed
- With surface abnormalities, such as basement membrane dystrophy, scars
- With extreme curvature( too steep, K>48 or too flat K< 40)
- Patients who are unable to open their eyes wide enough without excessively stretching their lids
- Patients engaging in certain risky activities The precautions:
- Mild to moderate pain after surgery for three to four days
- Slower visual recovery than LASIK
- Risk of corneal haze or scarring
- May need to use eye drops for months
- The surface cornea skin cells are loosened with diluted alcohol solution and removed. Then, excimer laser is applied to remove tissue from the surface of the cornea to alter the curvature of the cornea.
- The reshaped cornea causes images to focus more directly on the retina.
The Phakic Intraocular Lens is like an implantable contact lenses. It is a powerful refractive tool with almost unlimited potential to correct refractive errors making it an option for patients with both moderate to severe degrees of nearsightedness. Phakic IOL is done by implanting an artificial lens into the eye.
The ARTISAN®/ ARTIFLEX® lens is a small "contact lens" that's not placed on, but rather in the eye. The lens is positioned in the anterior chamber in front of the iris. It will stay there for the rest of your life.
Only a specially trained surgeon can perform this surgery.
First you are given a local anaesthetic to numb the eye after which a small incision is made in your cornea. The lens is inserted through this opening in the anterior chamber. When the lens is positioned exactly in front of the pupil it is fixed on to the iris with two clips on each side of the lens. This technique is unique. To learn more about this product, visit www.artiflexlens.com.
The benefits you gain from the procedure:
- Correction of high refractive errors in patients not suitable for Laser Refractive Surgery due to high powers or thin corneas.
- The procedure is reversible and the lens can be removed from the eye if a problem arises.
- It provides superior quality vision as the corneal shape is not altered.