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• Epic-2100 Refraction System
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Experience VISION TODAY™ With the WaveLight Eye-Q Laser System The Difference is our Technology

In keeping with our ongoing commitment to remain at the forefront of vision correction technology, Christenbury Eye Center now offers the newest and most technologically advanced laser system, the WaveLight Eye-Q laser.

Christenbury Eye Center is pleased to be the first and only center in North Carolina to treat our patients with the latest in state-of-the art eye care -- Blade Free iLASIK with IntraLase® FS, LADARVision, VISX STAR S4 and now all-laser LASIK with the WaveLight Eye-Q laser system.

This advancement in vision correction technology offers patients increased speed, accuracy and safety. In fact, the WaveLight Eye-Q is the fastest excimer laser system available in the United States today.

The WaveLight Eye-Q laser is the newest generation of excimer laser technology and is the first system to receive concurrent approval for the treatment of both nearsightedness and farsightedness. The treatment profile for this laser was developed after intense study of individuals who have what is called “super vision,” or vision that is better than 20/20. The laser reshapes the cornea of your eye to mimic the pattern of eyes with “super vision” and it does so with unparalleled customization. Due to the laser’s unique WaveFront-optimized ablation algorithm, the system delivers superior clinical results and a maximum level of safety for our patients.

Only the WaveLight Eye-Q laser is a “WaveFront-optimized” system. WaveFront technology not only corrects a patient’s prescription, but also aims to improve the “quality” of vision during daylight hours and prevent problems with night vision. The system also has a unique eye-tracking system, which automatically adjusts to changes in pupil size during treatment.

PERFECTPULSE TECHNOLOGY™

PerfectPulse Technology represents a new approach to laser vision correction — it accounts for speed, precision and safety in the WaveLight Eye-Q laser and offers improvements that are revolutionary in the field. Smart energy control measures and adjusts energy levels in the laser pulse from creation to delivery. High-speed eye tracking charts the eye’s movement 400 times per second. As a result, every laser pulse is completely controlled and accurate, achieving the most precise level of correction possible.

SMART ENERGY CONTROL

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.

WaveLight Eye-Q’s laser is essentially a precise, controlled beam of energy, which translates to heat. To make sure that this beam never causes any sort of adverse heating effect on the cornea, the WaveLight Eye-Q’s PerfectPulse Technology guides the laser pulses so that only every fifth pulse overlaps. Not only does this preclude unwanted heating effects, it is one of the ways that the WaveLight Eye-Q achieves a rounder, more natural corneal surface than many other lasers used for vision correction.

EYE TRACKING TECHNOLOGY

Due to the remarkable speed of both the eye and the WaveLight Eye-Q procedure, the laser beam needs to be constantly and minutely adjusted to the position of the eye at any given time. Every four to six milliseconds, the eye’s location is measured and the internal mirrors of the WaveLight Eye-Q are automatically aligned. Right before the pulse is released, a second check is made to confirm that the eye has not moved. This happens 400 times every second, once for every laser pulse released. 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.

SPEED

Currently, the WaveLight Eye-Q is the fastest vision correction laser available in the United States. At 400 treatment pulses per second, it takes only four seconds of treatment to correct one diopter. Of course, spending less time under the laser means less stress and discomfort for the patient.

WAVEFRONT TECHNOLOGY

One of the most innovative features of the WaveLight Eye-Q is the way it uses WaveFront-optimized technology to automatically compensate for the curvature of the cornea. In earlier laser correction systems, the “optical zone,” or area of correction, was centered on the front of the cornea; the result was a flattened circular area that ended with an abrupt edge, causing unwanted side effects like poor night vision, glare and halos.

This all changes with the WaveLight Eye-Q laser. Understanding that the cornea is a sphere, WaveLight Eye-Q uses a proprietary treatment that is adjusted to the patient’s individual corneal curvature. The WaveLight Eye-Q sends extra pulses to the peripheral cornea area to compensate for the angle of the laser. In this manner, the spherical shape of the cornea is preserved to a degree that older lasers simply could not achieve. This compensation, combined with the incredibly small, 1mm size of the laser, produces a smooth, effective optical zone that produces what can only be described as high performance vision.

HIGH PERFORMANCE VISION

Large Optical Zones
The WaveLight Eye-Q laser 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 than normal 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, they 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.

BETTER NIGHT VISION AND GLARE CONTROL

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. WaveLight Eye-Q is able to produce the largest available optical zone, virtually eliminating glare and night vision problems associated with older generation lasers.

Clinical Studies

When it was approved in 2006 as the first new laser in five years, the FDA granted the WaveLight Eye-Q laser the widest approval range ever initially given to a new laser for both myopic and hyperopic vision correction. Since then, the results have been astoundingly positive. WaveLight Eye-Q has been proven to provide superior clinical results, as shown by the following statistics:

• At one year after treatment, more than 93% of patients said they saw at least as well or better than they had with glasses or contacts before treatment.
• More than 98% of patients achieved 20/40 vision one year after treatment; 20/40 is the level of visual acuity required to pass most driving tests.
• Nearly 60% of near-sighted patients achieved 20/16 vision after one year of treatment.
• Both near- and far-sighted patients reported an improvement in their reaction to bright lights and night driving glare after WaveLight Eye-Q treatments. In addition, near-sighted patients reported an improvement in sensitivity to light.
• Predictable results are the norm for the WaveLight Eye-Q laser. More than 90% of patients achieve refraction within 1 diopter of their target correction.
• The WaveLight Eye-Q has a total re-treatment rate of less than 5% of patients.