Line
5 on the eye chart
to your left (20/40) is
the line you need to
read in order to legally
drive without corrective
lenses.
Line
8 is the familiar 20/20
line. Note that it
is possible (Line 9 =
20/15) to see better
than 20/20.
We
have grouped lines 7,8
and 9 together in our
results, because this
zone represents a vision
level that is typically
described as
"excellent" by
even the most
discriminating of our
patients.
Understanding
Your Prescription
In
order to understand our results,
you will need to understand your
prescription for eyeglasses or
contact lenses.
The
basic format for a prescription
is: +/- sphere
+/- cylinder x axis.
Prescription
examples:
-3.00
-2.25
x 178
+1.25
-0.75
x 90
2.00
+1.25
x
92
Plano
+0.50
x 122
-6.75
sph
Sphere
refers to the amount of
nearsightedness (myopia) or
farsightedness (hyperopia). If
the sphere number is negative,
then you are nearsighted. If it
is positive, then you are
farsighted. If your sphere
number is zero, we refer to it
as "plano" or
"PL".
Cylinder
refers to the amount of
astigmatism. It can be expressed
as either a positive or negative
number. In the section below,
unlike in the Results Calculator
section, it does matter
whether your cylinder number is
positive or negative.
If
your cylinder number is
positive, you can look up your
results directly from the table
below.
If
your cylinder number is
negative, then then you will
need to convert your
prescription to "plus cylinder
format". To do this, simply
click here and enter your
prescription into our
Prescription Converter.
Axis
refers to the direction on the
clock hour of your astigmatism.
The
axis number is not relevant to
the results table below.
If
you don't have any astigmatism,
then your prescription will only
have a number for sphere.
If
you would like a more detailed
explanation of spectacle and
contact lens prescriptions,
please see the discussion in our
Results Calculator section.
If
you have a question relating to
your prescription, please contact
us via phone, e-mail or our
online contact form.
Our
Results - Conventional Laser
Treatments*
Sphere
Visual
Acuity Line
Cylinder
Retreatment
Rate
<1
1
to 2
>2
-14.00
to -12.01
5
***
100%*
100%*
50%*
7,8
or 9
***
100%*
100%*
-12.00
to -10.01
5
100%
100%*
100%*
27.6%
7,8
or 9
71%
100%*
83%*
-10.00
to -8.01
5
100%
100%
100%*
14.8%
7,8
or 9
96%
96%
95%*
-8.00
to -6.01
5
100%
100%
100%
13.9%
7,8
or 9
97%
98%
95%
-6.00
to -4.01
5
100%
99%
98%
10.4%
7,8
or 9
98%
98%
93%
-4.00
to -2.01
5
100%
100%
100%
5.9%
7,8
or 9
99%
99%
93%
-2.00
to 0.01
5
100%
100%
100%*
4.1%
7,8
or 9
99%
98%
100%*
0.00
to 2.00
5
100%
100%
100%*
1.9%
7,8
or 9
100%
97%
100%*
2.00
to 4.00
5
100%
91%
***
3.7%
7,8
or 9
100%
73%
***
*** No eyes treated in this
range
*Small number of eyes treated
in this range
Data
last updated March 6,
2003
About
Retreatment Rates: Our aim
is to provide you with the
clearest possible vision. As
such, almost half of our
retreatments are performed on
individuals who already see Line
5 or better.
Many
centers don't do retreatments
unless your vision is Line 4 or
worse. As a result, their
retreatment rates are likely
lower.
Furthermore,
there are no hidden restrictions
or exclusions in our retreatment
policy. As long as it is
medically safe to do, we will
perform a retreatment if it is
your desire.
Please
note: These results are
presented to educate you as to
our past success rates. They not
meant to predict or guarantee
your specific outcome.
*
As
soon as we have performed of a
sufficient number of CustomVue
treatments, we will present our
real-world results online.
