The success treatment of vision disorders requires accurate diagnosis. As the first company in the industry to perform wave front measurements on the human eye, Wave light has accumulated a vast experience in the clinical application of wave front guided laser vision correction.

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 Wave light standard ‘Wave front-optimized” procedure to the highly sophisticated wave front guided treatment.

ALLEGRO A-CAT Treatment
The ALLEGRO Analyzer has been specifically designed to deliver wave front data needed to perform wave front-guided laser vision correction. All components such as software, resolution and algorithms have been optimized to work in concert with the ALLEGRO WAVE laser systems.

All necessary treatment and patient parameters are transferred from the ALLEGRO Analyzer to the ALLEGRO WAVE laser systems via diskette. The ALLEGRO A-CAT software inside the laser 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 wave front –guided) treatments are intended for use on patients with high incidence of higher-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 wave front measurements by utilizing the Tscherning operating principle, which works according to the same principle as the human eye.

In order to perform a measurement according to this principle, an image of the individual measurement spot 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 LALEGRO Analyzer to exclusively deliver valid data and minimizes the risk of false treatment.

The ALLEGRO Analyzer utilizes visible light to perform the measurements. Additional off-line calculations and factoring for chromatic errors are not required, thereby minimizing the risk of unnecessary inaccuracies.

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 wave front data. Proprietary Wave light data processing software allows for the registration and recording of valid measurements even with serious eye conditions. Several filters and computing stages also enable the generation of valid data from images with minor quality.