Important of Safety Information
VISX Wavefront-Guided
LASIK for Correction of Myopic Astigmatism, Hyperopic
Astigmatism and Mixed Astigmatism (CustomVue LASIK
Laser Treatment)
Statements regarding the potential benefits of wavefront-guided
LASIK (CustomVue) are based upon the results of clinical
trials. These results are indicative of not only the
CustomVue Treatment but also the care of the clinical
physicians, the control of the surgical environment by those
physicians, the clinical trials' treatment parameters and
the clinical trials' patient inclusion and exclusion
criteria. Although many clinical trial patients after the
CustomVue Procedure saw 20/20 or better and/or had or
reported having better vision during the day and at night,
compared to their vision with glasses or contact lenses
before the procedure, your results may vary. You can find
information about the clinical trials below and in the
CustomVue Patient Information Booklet. Only an eye care
professional trained in laser vision correction can
determine whether you are a suitable candidate for the
CustomVue Procedure. As with any surgical procedure, there
are risks associated with the
CustomVue Treatment. Before
deciding whether to have the CustomVue Procedure, you should
ask your doctor for and carefully review the
CustomVue Patient Information Booklet. It is important to discuss the
risks associated with the procedure and any questions you
may have about the procedure with your doctor.
WAVEFRONT-GUIDED LASIK
INDICATIONS AND INTENDED USES (LOW TO MODERATE MYOPIC
ASTIGMATISM):
The VISX STAR
S4 IR Excimer
Laser System and WaveScan WaveFront System is approved to
perform wavefront-guided laser assisted in-situ
keratomileusis (LASIK) treatments for the reduction or
elimination of low to moderate myopic astigmatism up to
-6.00 D MRSE, with cylinder between 0.00 and -3.00 D in
patients 21 years of age or older; and in patients with
documented evidence of a change in manifest refraction of no
more than 0.50 D (in both cylinder and sphere components)
for at least one year prior to the date of preoperative
examination. Note that the complete name for this ophthalmic
laser is "STAR S4 ActiveTrak Excimer Laser System for
wavefront-guided laser assisted in-situ keratomileusis
(LASIK) treatments of myopic astigmatism up to -6.00 D MRSE,
with cylinder between 0.00 and -3.00 D." An acceptable
alternate version of this official name is "wavefront-guided
LASIK for correction of myopic astigmatism."
Wavefront-guided LASIK is an elective procedure with the
alternatives including but not limited to eyeglasses,
contact lenses, photorefractive keratectomy (PRK),
conventional LASIK, and other refractive surgeries. Approval
of the application is based on a clinical trial of 351 eyes
(189 primary and 162 secondary). Of all eyes treated, 318
were evaluated for effectiveness with 98.8% accountability
at 3 months, 277 eyes with 96.9% accountability at 6 months,
102 eyes with 95.3% accountability at 9 months, and 86 eyes
with 95.6% accountability at 12 months. The studies found
that of the 277 eyes eligible for the uncorrected visual
acuity (UCVA) analysis of effectiveness at 6 months, 100%
were corrected to 20/40 or better, and 95.8% were corrected
to 20/20 or better in 71 spherical myopia eyes; and 99.5%
were corrected to 20/40 or better, and 93.2% were corrected
to 20/20 or better in 206 astigmatic myopia eyes.
The study showed that at the 3 month stability time point:
there was a loss of =2 lines of best corrected vision that
can be obtained with spectacles in 1 of 239 astigmatic
myopia eyes and there was no loss of =2 lines of best
corrected vision in 79 spherical myopia eyes; there was 1 of
239 astigmatic myopia eyes with best spectacle corrected
visual acuity (BSCVA) worse than 20/25 and none in 79
spherical myopia eyes with BSCVA worse than 20/25. During
the course of study, no eye lost >2 lines of BSCVA and no
eye had a BSCVA worse than 20/40.
WAVEFRONT-GUIDED LASIK
INDICATIONS AND INTENDED USES (HIGH MYOPIC ASTIGMATISM):
The VISX STAR S4 IR Excimer Laser System with VSS and
WaveScan WaveFront System are approved to perform wavefront-guided
laser assisted in-situ keratomileusis (LASIK) treatments for
the reduction or elimination of high myopic astigmatism from
-6.00 D to -11.00 D MRSE, with cylinder between 0.00 and
-3.00 D in patients 21 years of age or older; and in
patients with documented evidence of a change in manifest
refraction of no more than 1.00 D (in both cylinder and
sphere components) for at least one year prior to the date
of preoperative examination. Note that the complete name for
this ophthalmic laser is "STAR S4 IR Excimer Laser System
for wavefront-guided laser assisted in-situ keratomileusis
(LASIK) treatments of myopic astigmatism from -6.00 to
-11.00 D MRSE, with cylinder between 0.00 and -3.00 D." An
acceptable alternate version of this official name is "wavefront-guided
LASIK for correction of high myopia with or without
astigmatism."
Wavefront-guided LASIK for correction of high myopic
astigmatism is an elective procedure with the alternatives
including but not limited to eyeglasses, contact lenses,
photorefractive keratectomy (PRK), conventional LASIK, and
other refractive surgeries. Approval of the application is
based on a clinical trial of 184 eyes. Of all eyes treated,
180 were evaluated for effectiveness with 97.8%
accountability at 3 months, 178 eyes with 96.7%
accountability at 6 months, 170 eyes with 96.5%
accountability at 9 months, and 107 eyes with 93.9%
accountability at 12 months. The studies found that of the
178 eyes eligible for the uncorrected visual acuity (UCVA)
analysis of effectiveness at 6 months, 98.3% were corrected
to 20/40 or better, 97.2% were corrected to 20/32 or better,
and 84.3% were corrected to 20/20 or better without
spectacles or contact lenses. The study showed that of 83
spherical and 101 astigmatic eyes, no eyes lost 2 or more
lines of best corrected vision that can be obtained with
spectacles (BSCVA) and none of the eyes had BSCVA worse than
20/40.
WAVEFRONT-GUIDED LASIK INDICATIONS AND INTENDED USES
(HYPEROPIC ASTIGMATISM):
The VISX STAR S4 Excimer Laser System and
WaveScan WaveFront System are approved to perform wavefront-guided laser
assisted in-situ keratomileusis (LASIK) treatments for the
reduction or elimination of hyperopic astigmatism up to
+3.00 D MRSE, with cylinder between 0.00 and +2.00 D in
patients 21 years of age or older; and in patients with
documented evidence of a change in manifest refraction of no
more than 1.0 D (in both cylinder and sphere components) for
at least one year prior to the date of preoperative
examination. Note that the complete name for this ophthalmic
laser is "STAR S4 ActiveTrak Excimer Laser System for
wavefront-guided laser assisted in-situ keratomileusis
(LASIK) treatments of hyperopic astigmatism up to +3.00 D
MRSE, with cylinder between 0.00 and +2.00 D." An acceptable
alternate version of this official name is "wavefront-guided
LASIK for correction of hyperopic astigmatism."
Wavefront-guided LASIK for hyperopic astigmatism is an
elective procedure with the alternatives including but not
limited to eyeglasses, contact lenses, photorefractive
keratectomy (PRK), conventional LASIK, and other refractive
surgeries. Approval of the application was based on a
clinical trial of 144 eyes (74 primary and 70 secondary). Of
all eyes treated, 134 were evaluated for effectiveness with
98.5% accountability at 3 months, 131 eyes with 97.0%
accountability at 6 months, 118 eyes with 90.8%
accountability at 9 months, and 27 eyes with 87.1%
accountability at 12 months. The studies found that of the
131 eyes eligible for the uncorrected visual acuity (UCVA)
analysis of effectiveness at 6 months, 97.3% were corrected
to 20/40 or better, and 66.2% were corrected to 20/20 or
better in 74 spherical hyperopia eyes; and 93.0% were
corrected to 20/40 or better, and 56.1% were corrected to
20/20 or better in 57 astigmatic hyperopia eyes.
The study showed that at the 6 month stability time point:
there was no loss of =2 lines of best corrected vision that
can be obtained with spectacles in 1 of 239 astigmatic
myopia eyes and there was no loss of =2 lines of best
corrected vision that can be obtained with spectacles in
either 63 astigmatic hyperopia eyes or 74 spherical
hyperopia eyes; none of the 63 astigmatic hyperopia or 74
spherical hyperopia eyes had best spectacle corrected visual
acuity (BSCVA) worse than 20/25. During the course of the
study, one in 63 eyes with astigmatic hyperopia lost >2
lines of BSCVA at 1 month, no eyes with spherical hyperopia
lost >2 lines of BSCVA, and no eye had a BSCVA worse than
20/40.
WAVEFRONT-GUIDED INDICATIONS AND INTENDED USES (MIXED
ASTIGMATISM):
The VISX STAR S4 IR Excimer Laser System with
VSS and
WaveScan WaveFront System are approved to perform wavefront-guided
laser assisted in-situ keratomileusis (LASIK) treatments for
the reduction or elimination of naturally occurring mixed
astigmatism when the magnitude of cylinder (from 1.0 to 5.0
D) is greater than the magnitude of sphere and the cylinder
and sphere have opposite signs; and in patients 21 years of
age or older with documented evidence of a change in
manifest refraction of no more than 0.50 D (in both cylinder
and sphere components) for at least one year prior to the
date of preoperative examination. Note that the complete
name for this ophthalmic laser is "STAR S4 IR Excimer Laser
System" for wavefront-guided laser assisted in-situ
keratomileusis (LASIK) treatments of naturally occurring
mixed astigmatism when the magnitude of cylinder (from 1.0
to 5.0 D) is greater than the magnitude of sphere and the
cylinder and sphere have opposite signs. An acceptable
alternate version of this official name is "wavefront-guided
LASIK for correction of mixed astigmatism."
Wavefront-guided LASIK for mixed astigmatism is an elective
procedure with the alternatives including but not limited to
eyeglasses, contact lenses, photorefractive keratectomy (PRK),
conventional LASIK, and other refractive surgeries. Approval
of the application is based on a clinical trial of 86 eyes.
Of all eyes treated, 86 were evaluated for effectiveness
with 100.0% accountability at 3 months, 80 eyes with 95.2%
accountability at 6 months, 69 eyes with 86.3%
accountability at 9 months, and 63 eyes with 94.0%
accountability at 12 months. The studies found that of the
86 eyes eligible for the uncorrected visual acuity (UCVA)
analysis of effectiveness at 3 months, 95.3% were corrected
to 20/40 or better, 91.9% were corrected to 20/32 or better,
and 61.6% were corrected to 20/20 or better without
spectacles or contact lenses.
The study showed that of 86 astigmatic eyes, one eye
temporarily lost 2 lines of best corrected vision that can
be obtained with spectacles at 1 month and at 6 months, and
none of the eyes had best spectacle corrected visual acuity
(BSCVA) worse than 20/40.
CONTRAINDICATIONS:
Wavefront-guided LASIK is contraindicated in patients with
collagen vascular, autoimmune or immunodeficiency disease,
signs of keratoconus or abnormal corneal topography,
patients taking isotretinoin (Accutane®*) or amiodarone
hydrochloride (Cordarone®†) or are pregnant or nursing.
WARNINGS:
Wavefront-guided LASIK is not recommended in patients who
have diabetes, a history of Herpes simplex or Herpes zoster
keratitis, significant dry eye that is unresponsive to
treatment, or severe allergies. For the treatment of low to
moderate myopic astigmatism, lower uncorrected visual acuity
may be anticipated in the treatment of higher degrees of
myopia with and without astigmatism (=5.0 D MRSE).
PRECAUTIONS:
Long-term risks of wavefront-guided LASIK beyond 12 months
have not been studied. The safety and effectiveness of
wavefront-guided LASIK surgery has ONLY been established
with an optical zone of 6 mm and an ablation zone of 8 mm
for myopic treatments, and an ablation zone of 9 mm for
hyperopic and mixed astigmatism treatments. The safety and
effectiveness of STAR S4 Excimer Laser System have NOT been
established for wavefront-guided surgery in patients with
low to moderate myopic astigmatism: whose WaveScan
WaveFront
diameter is less than 6 mm; for treatments greater than -6
diopters of MRSE or with greater than 3 diopters of
astigmatism and for retreatment with CustomVue LASIK. The
safety and effectiveness of STAR S4 Excimer Laser System
have NOT been established for wavefront-guided surgery in
patients with high myopic astigmatism: whose WaveScan
WaveFront diameter is less than 5 mm; for treatments greater
than -11 diopters of MRSE or with greater than 3 diopters of
astigmatism. The safety and effectiveness of STAR S4
Excimer
Laser System have NOT been established for wavefront-guided
surgery in patients with hyperopic astigmatism: whose
WaveScan WaveFront diameter is less than 5 mm; for
treatments greater than +3 diopters of MRSE or with greater
than 2 diopters of astigmatism and for retreatment with
CustomVue LASIK. The safety and effectiveness of the
STAR S4 IR Excimer Laser System have NOT been established for
wavefront-guided surgery in patients with mixed astigmatism:
whose WaveScan WaveFront diameter is less than 5.00 mm; for
treatments greater than 5.00 D or less than 1.00 D of
astigmatism and for retreatment with CustomVue LASIK.
Although the WaveScan WaveFront System measures the
refractive error and wavefront aberrations of the human
eyes, including myopia, hyperopia, astigmatism, coma,
spherical aberration, trefoil, and other higher order
aberrations through sixth order, in the clinical studies for
low to moderate myopic astigmatism, hyperopic astigmatism
and mixed astigmatism, the average higher order aberration
did not decrease after CustomVue Treatment. In the clinical
studies for high myopic astigmatism, the average higher
order aberration increased after CustomVue Treatment.
It is possible, after wavefront-guided LASIK treatment, that
patients will find it more difficult than usual to see in
conditions such as very dim light, rain, snow, fog, or glare
from bright lights at night. Visual performance possibly
could be worsened by large pupil sizes or decentered pupils.
Pupil size should be evaluated under mesopic illumination
conditions.
ADVERSE EVENTS AND COMPLICATIONS (LOW TO MODERATE MYOPIC
ASTIGMATISM):
The clinical trial showed that the following adverse events
or complications occurred in at least 1% of the 351 eyes at
any interval up to 6 months post-treatment: inflammation of
the cornea under the flap (1.4%); double or ghost images
(1.4%); and scratch on the surface of the eye (1.4%).
The following subjective symptoms frequency rated "often or
always" were increased in the effectiveness cohort at 6
months post-treatment on 258 eyes compared with
pre-treatment on 332 eyes: dryness (9% vs. 6%); fluctuation
of vision (3% vs. 2%); glare (4% vs. 2%) and halos (7% vs.
5%).
ADVERSE EVENTS AND COMPLICATIONS (HIGH MYOPIC ASTIGMATISM):
The clinical trial showed that the following adverse events
or complications occurred in at least 1% of the 184 eyes at
one or more postoperative examinations up to 6 months
post-treatment: cells growing under the flap (1.1%); scratch
on the surface of the eye at 1 month or later (2.2%);
swelling of the corneal between 1 week and 1 month
postoperatively (2.7%) and double vision (or "ghost images")
in the operative eye (6.0%).
The following subjective symptoms were reported as present
"often or always" by a higher percentage of subjects 6
months after treatment than before treatment: dryness (10.8%
vs. 9.3%); halos (21.6% vs. 15.4%); and ghosting or
shadowing of images (2.8% vs. 1.1%).
ADVERSE EVENTS AND COMPLICATIONS (HYPEROPIC ASTIGMATISM):
The clinical trial showed that the following adverse events
or complications occurred in at least 1% of the 144 eyes at
any interval up to 6 months post-treatment: cells growing
under the flap (2.1%); feeling of something in the eye
(1.4%); double or ghost images (11.3%); and scratch on the
surface of the eye (2.1%).
The following subjective symptoms rated "often or always"
were increased in frequency in the effectiveness cohort at 6
months post-treatment on 131 eyes compared with pretreatment
on 136 eyes: dryness (17% vs. 6%); blurry vision (10% vs.
7%); fluctuation of vision (14% vs. 6%); halos (10% vs. 5%);
double or ghost images (7% vs.3%).
ADVERSE EVENTS AND COMPLICATIONS (MIXED ASTIGMATISM):
The clinical trials showed that the following adverse events
or complications occurred in at least 1% of the 86 eyes at
one or more postoperative examinations up to 3 months
post-treatment: miscreated flap (1.2%); cells growing under
the flap (4.7%); and double vision (or "ghost images") in
the operative eye (8.1%).
The following subjective symptoms were reported as present
"often or always" by a higher percentage of subjects 3
months after treatment than before treatment: dryness (22%
vs. 6%); halos (20% vs. 13%).
*Accutane® is a registered trademark of Hoffmann-La Roche
Inc.
†Cordarone® is a registered trademark of Sanofi-Synthelabo,
Inc.
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