The powerful performance laser
The SCHWIND AMARIS 750S offers high performance, proven outcomes and safety. The laser system ablates the cornea at two difference fluence values, thereby achieving a good combination of speed and precision. A very fine laser spot, with a diameter of just 0.54 millimeters (FWHM) ensures smooth corneal modelling.
With a repetition rate of 750 Hz, the SCHWIND AMARIS 750S achieves very short treatment times. The 6D eye tracker takes 1050 measurements per second to monitor the exact position of the eye in six dimensions. It actively compensates for any deviation with an ablation time of up to 1.5 seconds per dioptre.1
1 High-speed recording of thermal load during laser trans-epithelial corneal refractive surgery using a 750 Hz ablation system. J Optom. De Ortueta D, Arba-Mosquera S, Magnago T. 2019 Apr – Jun.
Precise: 6D eye tracking
Treatment success is enhanced by SCHWIND’s proprietary active 6D eye tracker which enables a unique level of precision. It is linked to the SCHWIND diagnostic systems and captures all eye motion (static as well as dynamic) during the procedure, for outstanding outcomes.
During the procedure, it precisely determines and compensates for the following eye movement dimensions:
- X-axis
- Y-axis
- Horizontal rolling
- Vertical rolling
- Eye rotation around the visual axis: static and dynamic cyclotorsion
- Z-axis: active compensation for upward and downward movements
Changes in pupil size are detected, and the laser is adjusted as necessary. In conjunction with the 6D eye tracker, this automatic function ensures correct centring throughout the procedure.
Benefits at a glance
*LASIK, without astigmatism, 12.5 HSA, 6 mm optical zone
Versatile: SCHWIND CAM
The modular SCHWIND CAM software facilitates optimum treatment planning for a very wide range of applications in refractive and therapeutic corneal surgery. SCHWIND CAM takes into account all diagnostic data, including corneal wavefront, ocular wavefront and pachymetry (central cornea thickness).
The modules are:
• ORK-CAM for refractive corneal surgery
• PresbyMAX for presbyopia treatment
• PTK-CAM for therapeutic corneal surgery
The KPL (keratoplasty) option in PTK-CAM supports safe and precise corneal transplants for patients for whom perforating keratoplasty is indicated.
Touch-free and gentler to the eye: SCHWIND SmartSurfACE
The SCHWIND AMARIS family works with all common treatment methods. This includes SCHWIND’s innovative SmartSurfACE technology. SmartSurfACE combines the benefits of touch-free TransPRK surface treatment with innovative SCHWIND SmartPulse technology. In TransPRK, vision is precisely corrected through the top layers of the cornea, gently and without touching the eye.
It works without suction, cut or incision. SmartPulse leaves the cornea surface smoother after lasering, accelerating the healing process. The patient experiences more comfortable treatment and faster recovery.
Further advantages
Intelligent Thermal Effect Control (ITEC)
Higher safety through corneal temperature monitoring and laser pulse sorting for minimum heating, resulting in very gentle ablation
Automatic Fluence Level Adjustment (AFLA)
Balanced pulse number and energy for the perfect combination of fast treatment and high corneal smoothness
Integrated slit lamp
Immediate postoperative control down to the deep layers of the cornea
Corneal Collagen Crosslinking Lamp
Lamp integrated in the workflow – Ready to use immediately, no additional adjustment necessary
Swivelling laser arm and powered swivelling bed
Comfort and convenience for patient, doctor and assistants
Treatment Assistant Manager (TAM)
Easier operation through controlled sequence of the operation steps light intensity, microscope magnification and fixation points; each step is individually adjustable
Integrated plume evacuation
Integrated plume evacuation and filter for clean operating theatre air
Automatic video record of treatment
Many teaching, reviewing and marketing possibilities
Automatic Fluence Level Adjustment
Ideal balance between the total number of laser pulses and energy delivered
AFLA - An ideal balance
With the Automatic Fluence Level Adjustment (AFLA), the SCHWIND AMARIS product family achieves desired level of corneal smoothening even at the highest ablation speed.* Researchers at SCHWIND have developed an algorithm that ensures an ideally balanced ratio between the total number of laser pulses and the energy delivered.
About 80 percent of the ablation is performed with a high fluence value. For the fine modelling – the remaining 20 percent – AFLA automatically switches to a lower fluence. The result is optimum smoothing of the cornea. Through the extremely small beam size and Super-Gaussian beam profile, you achieve desired ablation smoothness.
ITEC - Gentle even at the highest speeds
Intelligent Thermal Effect Control (ITEC) is the name of the thermal control process that prevents damage to the surrounding corneal tissue, even at the very high ablation speeds of the SCHWIND AMARIS product family. ITEC ensures that the laser pulses are distributed in a thermally optimised, dynamically adapted way, which gives the individual position on the cornea sufficient time to cool off. The following pulses can therefore approach an already cooled position faster. ITEC is better than the static processes. Studies using an infrared thermographic camera have proven that the corneal tissue only heats up minimally, even at high ablation speeds.*
The thermal control technology and ablation control with two fluence levels play a very important role, especially in biological terms: the less the biological interaction with the corneal tissue, the more reliably wounds can heal.
Prof. Jorge Alió, Vissum Medical Ophthalmologic Corporation, Alicante, Spanien
* High-speed recording of thermal load during laser trans-epithelial corneal refractive surgery using a 750 Hz ablation system. J Optom. De Ortueta D, Arba-Mosquera S, Magnago T. 2019 Apr – Jun.
