| 
 LASIK
stands for Laser In Situ Keratomileusis. It is a type of refractive
eye surgery that uses a laser to change the shape of the eye in
order to improve nearsightedness, farsightedness, and astigmatism.
Although it is not the only type of laser refractive surgery, LASIK
is by far the most popular due to its short recovery time and relatively
low risk of complications.
LASIK changes a person's vision by reshaping
the outer layer of the eye, called the cornea. Refractive errors
(i.e. nearsightedness, farsightedness, and astigmatism) occur when
the cornea is not shaped correctly. For example, in a nearsighted
eye, the cornea is too steep. When light enters the eye, it does
not focus on the back of the eye (the retina) as it should but in
front of it. LASIK works by changing the shape of the cornea so
that light focuses on the retina, producing clear images.
LASIK is a short, outpatient procedure. Including
prep time, most patients are only in Dr. Perrone's office about
an hour. First, the eyes are numbed with anesthetic eye drops. Nervous
patients may also be given a sedative to help them relax. The eyelids
are held open with a special device called a lid speculum. A suction
ring is then used to create high pressures on the eye.
To begin the surgery, Dr. Perrone uses a special
instrument called a microkeratome to cut a thin flap in the eye's
cornea. A hinge is left attached at one end and the flap is peeled
back to reveal the tissue below. A very precise laser is then used
to remove tissue and change the change of the cornea. The laser
portion of the surgery lasts about a minute. The flap is then laid
back into place where it protects the underlying tissue and heals
naturally, almost always without the use of stitches.
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 The
only way to determine for certain whether you are a candidate for
LASIK is to schedule an eye examination with Dr. Perrone. He will
check your vision thoroughly and make a personalized recommendation
based on your case. There are, however, a few general guidelines
when it comes to LASIK candidacy.
You may be a good candidate for LASIK if you are:
- over age 18
- in good overall physical health
- not pregnant or nursing
- free from eye diseases
- aware of the possible risks associated with LASIK
In addition, patients should not have had an eyeglass
prescription change in the past year. People with thin corneas or
large pupils may not be good candidates for LASIK. These and other
measurements will be taken at your preoperative eye examination
to help determine your candidacy.
To learn more about LASIK eye surgery, please
contact Dr. Perrone today!
Dr. Perrone performs many of the procedures at his practice
using the VISX STAR S4 Laser System. An excimer laser, the VISX system is the
most advanced laser technology available today. Integrating data collected by
the WaveScan WaveFront System, the STAR S4 utilizes Variable Spot Scanning (VSS),
to conserving tissue and optimize treatment times; Variable Repetition Rate
(VRR), delivering treatment at varying rates and optimizing treatment time;
ActiveTrak 3-D Active Eye Tracking, capturing all 3 dimensions of intra-operative
 eye movements without necessitating dilation; and ActiveTrak Automatic Centering,
to automatically set treatment at the center of the pupil. Rest assured that with
Dr. Perrone, you will receive the finest treatment modern science has to offer.
Contrast sensitivity, face recognition, night vision; these are all factors that make up what is known as "visual quality".
Traditional laser vision correction addresses only visual acuity, and problems such as nearsightedness, farsightedness, and
astigmatism. CustomCornea®, a new laser vision correction procedure, can now improve visual quality, and treat a range of visual
problems called higher order aberrations, as well as improving visual acuity. Higher order aberrations are a range of symptoms
that affect your visual quality, and were left untreated by earlier laser vision correction procedures. These problems are usually
most apparent in low-light situations and may include night vision problems like glare and halos. CustomCornea® can now treat these
problems based on a pre-operative examination that includes wavefront analysis. A wavefront map will be made of your vision, and in
CustomCornea® with the LADARVision® System, the map will be used to guide the doctor's surgical  planning during laser treatments
to address visual quality and treat higher order aberrations. Dr. Perrone is proud to offer CustomCornea® with the LADARVision® System
at his practice. Please contact him today.
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