With the AMARIS, SCHWIND have developed an all-rounder with unmatched high performance, thereby offering an extraordinarily high level of accuracy and the first-and-only laser to combine all available state-of-the-art technologies in one system.
It combines very high ablation speed with a turbo-charged eyetracker considering pupil and limbus tracking, rotation balance and advanced cyclotorsion control. These ensure the perfect balance between extremely high speed and accuracy. The integrated online pachymetry ensures the greatest possible level of safety.
Technology
Smart Surface Technology
No-Touch“ Surface Treatment with SCHWIND AMARIS technology: The surface treatment TransPRK works without the need to prepare the cornea. It is an advanced version of surface treatments as LASEK, Epi-LASIK and PRK. Here, the epithelium is ablated with the excimer laser without touching the eye at all.
Active 7D Eye Tracker
The 7D active eye tracker impresses through a number of benefits: Apart from the linear movements (1st and 2nd dimensions) it compensates rolling movements of the eye (3rd and 4th dimensions). Compensation of the eye’s rotation around its optical axis is achieved with the static and dynamic Advanced Cyclotorsion Control (5th dimension). Movements along the z-axis (sixth dimension) are actively compensated by means of the z-tracking. Automatic pupil size control and pupil centroid shift compensation ensure additional safety.
Automatic Fluence Level Adjustment (AFLA)
The Automatic Fluence Level Adjustment (AFLA) method ensures an ideally balanced ration 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 work – the remaining 20 percent – the laser system automatically switches to a lower fluence.
Highest Pulse Rate
The highest of all excimer lasers on the market – and consequently an extremely short ablation time of just 1.3 seconds per dioptre.
That means even greater safety and comfort for the patient. The risk of the cornea drying out is minimised, and the length of time the patient has to fixate on the green light is reduced.
0.54 mm spot size
Super-Gaussian spot profile (FWHM)With the extremely small spot size and the Super-Gaussian beam profile an exceptionally smooth and tissue saving ablation is achieved.
Intelligent Thermal Effect Control (ITEC)
The thermal control process prevents damage to the surrounding corneal tissue, even at very high ablation speed. 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. Following pulses can thereby approach an already cooled position faster.
Specifications
1050Hz Turbo Eye Tracker
An eye tracker must work at a significantly higher frequency than the laser in order to safely allow a very short ablation time. The 1050 Hz turbo eyetracker of the AMARIS, with a response time of less than 3 ms, serves to provide unsurpassed precision in the positioning of each laser pulse. The extreme speed and other groundbreaking features, such as rotation balance, limbus tracking and static as well as static and dynamic cyclotorsion control, Z-axis tracking and Latency-Free positioning, ensure exact compensation of every eye movement, on into the seventh dimension.
Automatic Fluence Level Adjustment (AFLA)
With the Automatic Fluence Level Adjustment (AFLA), the SCHWIND AMARIS product family achieves perfect smoothing of the cornea 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 an exceptionally smooth ablation.
Intelligent Thermal Effect Control (ITEC)
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 clearly superior to the usual static processes. Studies using an infrared thermographic camera have proven that the corneal tissue only heats up minimally, even at high ablation speeds.
7D Latency-Free Tracking
The new, ground-breaking Latency-Free Tracking considers the time factor, i.e. the 7th dimension. Latency-Free Tracking compensates for eye movements that occur in the period between acquisition of the eyetracker image and triggering of the subsequent laser pulses. The eye tracker performs a motion analysis on the basis of previous eye positions during the treatment. It then calculates, for all six dimensions, where the corneal target position will be at the moment of the next two consecutive pulses. The scanner moves to this position before the next pulse is triggered. The laser system knows exactly when and where future laser pulses need to be triggered. The effect of this is latency-free ablation – and a perfect combination of speed and precision during the laser treatment.
Particle-free Climatic Conditions
The unique particle aspiration system of the AMARIS provides for stable environmental conditions over the cornea — independent of any air movement in the operating room. The result of SCHWIND's comprehensive flow analysis is that energy-reducing particles are removed during ablation with the aid of directed airflow. Also available is an optional 2-axis slit lamp with interchangeable masks for detailed inspection of the cornea.
Integrated Fast UV Corneal Cross Linking
All laser systems in the SCHWIND AMARIS product family offer the option of integrating an innovative UV lamp, the SCHWIND CXL-365 vario system. This enables you to carry out corneal collagen crosslinking (CXL) easily and conveniently at the workplace of your laser system. The precise X/Y adjustment of the patient bed makes it very easy to position the patient. The SCHWIND CXL-365 vario system features three power settings and a continuously adjustable aperture. The highest power setting enables deep crosslinking within five minutes, and the UV beam can be positioned precisely on the cornea. The display shows you the remaining treatment time. Integration of the SCHWIND CXL-365 vario into the SCHWIND AMARIS product family represents another ground-breaking development, which delivers high efficiency and ease of operation for you. For your patients it means gentle and safe treatment
Swivelling Delivery Arm
The optical delivery path of the Amaris is evacuated to eliminate contamination of the optical components and negate the need for nitrogen to flush the beam path. The delivery arms of the 750S and 1050RS are also designed to electrically swivel. This aids with patient entry when the Amaris is coupled with a Femto Second Laser. The patient bed also swivels up to 90 degrees with the option of motorised translation. The Amaris can be coupled with most modern Femto Second Lasers if required.