Now,
thanks to advanced wavefront technology, it’s possible to
both measure and treat both higher and lower order
aberrations. The LADARVision® System is the only vision
correction system proven to deliver results better than
conventional laser vision correction!
Not All 20/20
Is The Same
Excimer lasers have been used to correct nearsightedness,
farsightedness and astigmatism for over six million people
worldwide. An estimated 98% of these patients are now seeing
20/20 to 20/40 without glasses. With such impressive
results, how could you expect laser vision correction to
improve?
Quality vs.
Quantity of Vision
Since the mid-1800's eye doctors have measured how well
we see using the Snellen Eye Chart. But the Snellen vision
test can only measure how much vision you have (quantity)
not how well you see (quality). According to the Snellen
vision test, your vision is considered "normal" if you can
identify the letters on the 20/20 line from a distance of 20
feet. But just being able to identify the letters doesn't
necessarily mean you have excellent vision, especially if
they are not crisp and clear.
Until now, laser vision correction, like glasses and
contacts could only correct the visual distortions caused by
nearsightedness, farsightedness, and astigmatism. However,
these three type of vision distortions only account for
85%-90% of the overall quality of your vision. There are
other imperfections in your eye’s optical system that may
affect the clarity of your vision and how well you see at
night and in low light. These distortions are called “higher
order aberrations” and they can cause glare, shadows, halos
and other annoying visual effects. Unless these higher order
aberrations are addressed along with the lower order
aberrations, the quality of your vision may not be ideal,
even if you have measurable vision of 20/20.
These images show what a Snellen Eye Chart would look like
if "higher order aberrations" were present after
conventional laser vision correction. Although this person
can identify the 20/20 line, the quality of his or her
vision would not be ideal.
Here is how
it works:
First, flat waves of light are passed through your eye
using a computerized wavefront-measuring instrument called
LADARWave™.
As
the light waves travel through your eye's
optical system,
the imperfections in the eye distort the flat light waves.
LADARWave™ captures the distorted waves as they exit your
eye and compares them to the perfectly flat light waves that
would have been reflected if your optical system had no
distortions.
Next, a 3D map is generated representing your unique
visual distortions, including both lower and higher order
aberrations. This map is a guide for the laser, telling it
how and where to reshape the cornea to correct your vision.
CUSTOMCORNEA® is the process of reshaping your cornea to
address both lower and higher order aberrations.
To schedule a free consultation, or to learn more about
LADARVision® CUSTOMCORNEA®, please call Dr. David Choi at
(951) 321-6356.
|