Allegro Analyzer
The successful treatment of vision disorders requires accurate diagnosis. As the first company worldwide to perform wavefront guided treatments on the human eye, WaveLight has accumulated vast experience in the clinical application and integrated these experiences in their product line.
The Allegro Analyzer is an ideal diagnostic device to support the decision-making process for customized laser vision correction. It greatly enhances the range of possible treatments, from the standard wavefront optimized procedure to the highly sophisticated wavefront guided treatment.
Allegro A-CAT Treatment
The Allegro Analyzer has been specifically designed to deliver the wavefront data needed to perform safe and successful wavefront guided laser vision correction. All components such as the user interface, resolution and algorithms have been optimized to work in concert with the Allegreto Wave laser systems.
All necessary treatment and patient parameters are transferred from the Allegro Analyzer to the Allegreto Wave laser systems. The Allegro A-CAT software inside the laser’s notebook computer then calculates the appropriate correction pattern. The physician may, however, decide to change individual parameters at any stage of the process.
Allegro A-CAT (or wavefront guided) treatments are intended for use on patients with high incidence of high-order aberrations in their optical system. Any required correction to the optical path of the eye is then enabled via A-CAT module on the cornea.
Tscherning Principle
Working in the visible spectrum, the ALLEGRO Analyzer is designed to make wavefront measurements by utilizing the Tscherning operating principle, which works as the same principle as the human eye. In order to perform a measurement according to this principle, an image of the measurement spots is projected onto the retina. This allows the physician to constantly verify that the image has been taken properly and that all measurement spots are actually valid. The application of this measurement principle allows for the detection of inaccurate readings caused by local obstructions.
The application of this principle allows the Allegro Analyzer to exclusively deliver valid data and minimizes the risk of false treatment. The Allegro Analyzer utilizes visible light to perform the measurements, therefore additional off-line calculations and factoring for chromatic errors are not required.
Automatic measurement release ensures that only centered measurements will be taken into account. Minor decentrations are detected and registered along with the pupil diameter and other relevant values. These data are then added to the actual wavefront data. Proprietary WaveLight data processing software allows for the registration and recording of valid measurements even with serious eye conditions.