ALLEGRETTO WAVE EYE-Q
ALLEGRETTO WAVE EYE-Q
We are proud to offer the newest and most technologically advanced laser system, the ALLEGRETTO WAVE EYE-Q excimer laser. This advancement in vision correction technology offers patients increased speed, accuracy and safety. In fact, the ALLEGRETTO WAVE Eye-Q is one of the fastest excimer laser systems.
The ALLEGRETTO WAVE Eye-Q Excimer 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.
The Eye-Q takes the proven ALLEGRETTO WAVE technology one step further. With its additional customization capabilities it is geared towards the advanced refractive surgeon who seeks to further improve the surgery process.
A 400 Hz ablation rate makes the Eye-Q one of the fastest lasers in the world and its unique PerfectPulse Technology ensures safety and accuracy in combination with outstanding visual results.
The Eye-Q´s cross line projector in combination with the NeuroTrack module enables the control of head movement, cyclotorsion, and improves precision.
Aside from the ability to perform Wavefront Optimized™, wavefront-guided or topography-guided treatments, the Eye-Q features Custom Q, the first treatment module that allows the customization of corneal asphericity.
Advanced Safety: Active Cyclotorsion Control
Finding the eye‘s correct treatment position and avoiding displacements caused by cyclotorsion is one of the most important factors in obtaining an excellent refractive outcome especially in high astigmatic corrections. The advanced NeuroTrack feature ensures active optokinetic eye-tracking to control cyclotorsion. NeuroTrack forces the eye to stabilize the retinal image to achieve perfect vertical and horizontal orientation. Coupled with the equilibrium sense, the vestibular ocular reflex automatically rotates the eye back to compensate for possible head rotation. With the WaveLight systems we can also treat difficult cases or patients with a high cyclotorsion value and still produce excellent results. Design the ergonomically designed and state-of-the-art devices also have a reassuring impression on the patients and lead to a more relaxed pre-surgery atmosphere, in turn facilitating the surgeon’s work.
Safety and Precision
WaveLight laser systems apply PerfectPulse Technology to ensure safe and precise work at high speed.
PerfectPulse Technology simply means that every laser pulse is completely controlled from its generation to the point when it contacts the cornea.
Each ultra-thin laser pulse is used to sculpt the corneal surface with the utmost precision.
In order to further enhance the safety and precision of the treatment, PerfectPulse Technology uses advanced high-speed eyetracking to follow the eye’s fastest movements and to ensure an accurate placement of each laser pulse on the cornea.
During the treatment, the energy stability of every pulse is controlled on the basis of a smart energy control program which automatically balances the energy levels to ensure that each laser pulse creates the same accurate result.
Excellent Visual Acuity
WaveLight is a pioneer in wavefront research. The very first wavefront-guided treatment ever was performed with a WaveLight device.
Quite early in our research it became clear that standard treatments that do not take the natural aspheric shape of the cornea into consideration induce spherical aberrations.
WaveLight lasers are the only systems to use Wavefront Optimized™ ablation profiles as part of their standard treatments. This prevents or reduces the induction of spherical aberrations, resulting in better night vision and less sensitivity to glare.
The Principle of Wavefront Optimization
The natural shape of the human cornea is aspheric. This means that all light rays meet in one sharp focus point.
Therefore the WaveLight laser systems perform an ablation with the objective to maintain a natural postoperative corneal shape and thus to preserve the cornea’s asphericity.
Every treatment is customized to the patient’s individual refraction and corneal curvature by taking the K-readings into consideration.
Improved Night Vision
In order to maintain the patient’s refraction and corneal curvature, it is important to understand the behaviour of every laser pulse when it meets the eye. When laser light hits the center of the cornea, it is fully absorbed. However, in the periphery, the angle of incidence resulting from the cornea‘s curved shape will cause energy reflections.
WaveLight laser systems apply additional pulses in these peripheral areas to compensate for the energy loss, and to achieve the desired post-operative aspheric contour even in the outer areas of the cornea. In order to precompensate for the possible induction of spherical aberrations, the laser applies even more pulses depending on the patient‘s individual corneal steepness.
The effect of higher order aberrations increases with pupil size.
Controlling the peripheral ablation allows the laser to create large, true optical zones . This results in better vision under conditions when the pupil is enlarged, for example, at night or in twilight.
By treating larger optical zones with a diameter of up to 8 mm, postoperative glare and halos are minimized.
Perfect Surface Quality
The WaveLight laser systems´ Gaussian beam profile ensures a smooth ablation without grooves or ridges, while the tiny 0.68 mm (FWHM) spot size provides a precise ablation of corneal tissue.
In addition, it guarantees improved control of the pulses‘ shape and also maximum uniformity of each emitted pulse due to the different energy density (power in the center and less in the periphery).
WaveLight laser systems are the only ones in the market to adjust the beam profile and energy distribution with a special optical electronic beam analyzing system during preventive maintenance. This ensures best shape of the Gaussian beam profile and smoothest surface qualities
Better Results, Quick Visual Recovery
The Eye-Q works with a pulse frequency of 400 Hz. This results in a correction time of only 2 seconds per diopter (considering a fully corrected optical zone of 6.5 mm). Thus, the average myopia correction takes about as little time as pouring a cup of coffee.
The rapid repetition rate also results in expedited vision regeneration, more comfort for the patient and a minimization of external influences.
Thermically optimized shot distribution
Due to the high pulse frequency, there is a general theoretical risk of thermal effects. In WaveLight laser systems, this is prevented by the fact that only every fifth pulse overlaps a previous one, so that the affected spot has sufficient time to cool in-between pulse application.This minimization of thermal effects is another decisive factor in speeding up the healing process.
Closed loop energy control
The integrated closed loop energy control guarantees a stable energy flow throughout the treatment. This ensures higher precision and safety, as well as a lower rate of enhancements.
As a part of the advanced PerfectPulse Technology, the closed loop energy control system manages the energy levels of every laser pulse during the treatment. At several points throughout the laser beam path the pulse energy is determined and output energy is automatically regulated in order to ensure stability.
Using a fine laser beam at high speed, the WaveLight laser systems rely on their synchronous, video-based, active eye-tracker to follow even the fastest eye movements with a response time of less than 6 ms.
As a pupil-based system, it tracks pupils between 1.8 and 8 mm, while the automatic centering mode ensures perfectly centered ablations.
The closed loop tracking modereconfirms the eye‘s location again before a pulse is placed on the cornea to ensure that every pulse goes into the desired location.
In addition, the eye-tracker offers the possibility to determine the center of ablation on an individual basis.
This means better results with hyperopia treatments or in eyes with a displaced optical axis (compensating the angle kappa).
A dialation of the patient´s eye is not required.
True Customization, Presbyopia Treatments
The unappropriate change of the corneal asphericity (also referred to as the “Q value”) can have an adverse effect on visual acuity under mesopic and scotopic conditions as hereby the shape and size of the focal point can be changed.
The Q-value differs from patient to patient, meaning highest impact for the visual acuity, generated by the corneal shape. Nevertheless, this is not the only factor for best visual acuity of the patient.
In addition to Wavefront Optimized™, wavefront-guided and topography- guided treatments, the adjustment of the Q-value now offers a 4th dimension to the treatment of vision disorders by allowing the customization of the asphericity of the cornea.
This provides true customization and offers a treatment ideally adjusted to the individual needs of the patient.
With the advanced fine tuning capabilities implemented in the Custom Q software module, the physician has the possibility of an extended treatment planning.
This allows to customize the treatment ideally to the individual needs of the patient.
The software automatically calculates the most tissue saving ablation pattern and provides the surgeon with enhanced safety. This is a result of the automatic cylinder notation conversion whereby refraction can be programmed in any cylinder notation.
In addition, Custom Q is the ideal tool to achieve excellent results in presbyopia treatments.