Wavefront Optimized Technology 

ALLEGRETTO WAVE® is capable of producing some of the largest available optical zones. The optical zone refers to the portion of the cornea that has been corrected by the laser. A larger optical zone is especially important for night vision, and for patients with very large pupils. If a patient's pupil is larger than the optical zone, they may experience poor peripheral vision, poor night vision, and a higher than normal incidence of “halos” and glare. In the past, this has been one of the biggest drawbacks to conventional laser correction surgery. Wavefront Optimized™ technology built into ALLEGRETTO WAVE® addresses this limitation.

Better Night Vision and Glare Control

At night and in dark conditions, the pupil becomes larger to permit the maximum amount of light to enter the eye. Laser eye correction needs to take this fact into account. If the optical zone is smaller than the size of the pupil at its largest, there is a good chance that the patient will experience poor night vision or problems with glare and halos around bright objects such as oncoming headlights. ALLEGRETTO WAVE® is able to produce a larger optical zone, virtually eliminating glare and night vision problems associated with older generation lasers.

Wavefront Guided Technology

Wavefront analysis is the measure of how sharply your eye focuses light to a point inside your eye, on your retina. If the light is sharply focused, the wavefront analysis shows no optical aberration. If the light is not sharply focused, the wavefront analysis will show aberration. Aberration tends to increase with larger pupils, and is not usually a concern with smaller pupil size. While all lasers correct the prescription error of the eye (myopia, hyperopia, astigmatism), simply correcting this does not ensure that the light will be focused without aberrations after your laser treatment. Optical aberrations are the main reason why people with large pupils complain that they have trouble seeing at night. At vivid laser centre we measure the amount of optical aberrations in your eyes, and select from one of the two programs (wavefront optimized or wavefront guided) that the FDA studies show would benefit you most. Many laser companies tout the benefits of treatment of optical aberrations, although only the Allegretto laser has been proven to reduce optical aberrations after treatment. No other laser manufacturer can make that claim.