High Performance Vision
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.
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.
