Dr. Winthrop is pleased to announce the WaveLight® EX500 with CONTOURA® Vision. This revolutionary system surpasses all previous LASIK systems with faster procedures, superior results and fewer side effects. Because the treatment is uniquely tailored to each eye and tiny aberrations are smoothed out, patients commonly report a new clarity beyond glasses and contacts and many are getting vision better than 20/20.
The WaveLight® EX500 with CONTOURA® Vision is the LASIK system of choice for the following reasons:
Speed and Spot size
–500 Hz ablation rate
–1.4 seconds per diopter ablation
–0.68 mm Gaussian laser beam
Why speed matters
• Reduces stromal dehydration
• Reduces exposure to temperature and humidity factors
• Improves patient fixation time
• Improves patient comfort throughout
The significance of a Gaussian beam profile
The treated surface of the patient's cornea is reshaped smoothly with a Gaussian beam like the WaveLight EX500. Flat-top beam lasers leave a rough, notched surface on the cornea.
One of the most innovative features of our new LASIK system is our adoption of CONTOURA Vision, a highly sophisticated eye-mapping technology. CONTOURA Vision precisely maps up to 22,000 elevation points on each of your eyes. We can now capture these images of the irregularities of your eye and add this to your unique LASIK correction plan. Some of these irregularities may indicate that you have been seeing smears, halos, and glares even with your glasses and contacts. The treatment of these "Higher Order Aberrations" may take patients beyond the vision afforded them by their glasses and contacts, giving them improvement of contrast and clarity beyond 20/20. Patients typically see much better than they are used to on the first day and enjoy continual improvement over 12 months.
Our patients tell us that they are now experiencing vision with unprecedented clarity, color, and dimension.
WaveLight was the first company to introduce high-speed laser vision correction in the United States. Now, the WaveLight EX500 takes the technology one step further with the fastest excimer laser system available today in the U.S. Thanks to the incredible power of the laser, many people can have their vision corrected in as little as eight seconds, some even more quickly. At the same time, the WaveLight EX500 with CONTOURA Vision delivers superior results, with less risk of side effects.
Perfect Pulse Technology™ ensures safe and precise work at high speed. Each ultra-thin laser pulse is used to sculpt the corneal surface of the eye with the utmost accuracy. The high-speed eye tracker follows the eye’s fastest movements, checking the eye’s positions 500 times per second while ensuring an accurate placement of each laser pulse on the cornea. In addition, an integrated crossline projector provides the surgeon with an exact alignment of the eye’s position, making the WaveLight® EX500 one of the safest, most effective optical lasers currently available.
You can have peace of mind that the amount of energy in the laser has been calibrated to exactly the right level. After the beam has been created, it passes through three checkpoints on its way to your eye. At each of these points, the energy level is checked and adjusted if necessary, ensuring that the beam is perfectly attuned at its destination.
The WaveLight® EX500 laser is essentially a precise, controlled beam of energy. The laser employs a proprietary overlapping method to ensure accurate laser placement and thermal control, and is one of the ways that WaveLight® EX500 is able to achieve a rounder, more natural corneal surface than many other lasers used for vision correction.
The eye tracker is 10 times faster than your eye so you need not worry that your procedure will be affected by any eye movement you might accidentally make. Due to the remarkable speed of both the eye and the WaveLight EX500, the laser beam needs to be constantly and minutely adjusted to the position of the eye at any given time. Every two to three milliseconds, the eye’s location is measured and the WaveLight EX500 automatically aligns. Just before the pulse is released, a second check is made to confirm that the eye has not moved. This happens 500 times every second, once for every laser pulse. If, at any time, the eye moves too quickly to be measured or moves out of range, the laser will stop and wait for the eye to move back into position.
Being infrared, the illumination sources cannot cause thermal heating. The illumination sources are independent, meaning that the tracker will continue to work even if one of the pods is covered by the surgeon's hand or a sterile drape, and the gooseneck shape of the illumination pods prevents backscattering of surgery.
Currently, the WaveLight EX500 is the fastest vision correction laser for LASIK available in the United States. At 500 laser bursts per second, it takes only about 1.4 seconds of treatment to correct one diopter. Of course, spending less time under the laser means less stress and discomfort for the patient. More significantly, this means greater accuracy as well, due to less drying of the cornea during treatment, the chief cause of overcorrection.
Patients with myopia (nearsightedness) can determine their approximate treatment time on the chart below:
|Diopters of Correction Needed||1||2||4||6||8|
|Seconds of Actual Laser Treatment||1.4||2.8||5.6||8.4||11.2|
The WaveLight® EX500 with CONTOURA® Vision eye-mapping is capable of producing some of the largest available optical zones. The optical zone refers to the portion of the cornea that has been corrected by the laser. A larger optical zone is especially important for night vision and for patients with very large pupils. If a patient’s pupil is larger than the optical zone, he or she may experience poor peripheral vision, poor night vision, and a higher than normal incidence of “halos” and glare. In the past, this has been one of the biggest drawbacks to conventional laser correction surgery, so if you have previously been told your pupils are too large for LASIK, see Dr. Winthrop for a free LASIK consultation to see if you may indeed be a candidate.
At night and in dark conditions, the pupil becomes larger to permit the maximum amount of light to enter the eye. Laser eye correction needs to take this fact into account. If the optical zone is smaller than the size of the pupil at its largest, there is a good chance that the patient will experience poor night vision or problems with glare and halos around bright objects such as oncoming headlights. The WaveLight® EX500 with CONTOURA® Vision is able to produce a larger optical zone, virtually eliminating glare and night vision problems associated with older-generation lasers.
Finding the eye’s right treatment position and avoiding displacements caused by cyclotorsion is one of the most important factors in obtaining an excellent refractive outcome. The WaveLight® EX500’s integrated cross line projector provides the surgeon an exact alignment of the eye’s position. The target diode which generates a red light cross hair on the patient’s face, illustrating the correct position in coordination with the manual marks. With the WaveLight® EX-500, a surgeon can also treat difficult cases or patients with a high cyclotorsion value up to 15% and still produce excellent results. This was demonstrated by the FDA clinical trials having a cornering predictability from ± 0.5 D.
This information pertains to all WaveLight® Excimer Laser Systems, including the WaveLight® ALLEGRETTO WAVE®, the ALLEGRETTO WAVE® Eye-Q, and the WaveLight® EX500.
Caution: Federal (U.S.) law restricts the WaveLight® Excimer Laser Systems to sale by or on the order of a physician. Only practitioners who are experienced in the medical management and surgical treatment of the cornea, who have been trained in laser refractive surgery (including laser calibration and operation) should use a WaveLight® Excimer Laser System.
Indications: FDA has approved the WaveLight® Excimer Laser Systems for use in laser-assisted in situ keratomileusis (LASIK) treatments for nearsightedness (myopia), farsightedness (hyperopia), and astigmatism, including mixed astigmatism. Astigmatism occurs if the shape of your eye causes light to bend and distort as it passes through your lens. With astigmatism, objects tend to appear blurry or unfocused. Mixed astigmatism occurs if you have symptoms of nearsightedness and farsightedness at the same time.
The WaveLight® Excimer Laser Systems are approved for the following specific LASIK treatments
Contraindications: If you have any of the following situations or conditions, you should not
have LASIK because the risk is greater than the benefit:
Warnings: If you have any of the following conditions, you should have LASIK only if your
doctor evaluates the seriousness of your condition and believes the benefit of having LASIK
is greater than the risk:
Precautions: If any of the following conditions or situations apply to you, you should discuss
them with your doctor:
"I traveled 2,000 miles to see Dr. Winthrop. The care was expert, exacting and provided in a kind and caring manner. I plan to play golf in the snow with a white ball and not lose it!"
– Jim Ash
Former CEO Cottage Hospital
Current Illinois resident