 |
Both PRK and LASIK are
effective for vision correction; however, doctors are increasingly
leaning towards LASIK because of the faster visual recovery rate and
fewer post-operative visits. These are also much more preferable to
the patient. Currently,
there are two forms of surgery that can correct these errors: Photorefractive keratectomy (PRK) and laser in situ
keratomileusis (LASIK). |
PRK
uses a laser for vision correction to reshape the surface of the
cornea by emitting pulses of light.
With
LASIK, a thin flap is made across the
surface of the eye using a microkeratome. This highly sophisticated
device allows the laser to be applied to the deeper layers of the
cornea underneath the flap, reshaping the underlying tissue. The flap
is then laid back in place, usually requiring no sutures. The patient
feels nothing during the process.
Both procedures are
effective in the correction of myopia and astigmatism. The chart below
illustrates the differences:
| |
PRK |
LASIK |
|
Procedure Time |
5 minutes
|
5 minutes
|
|
Procedure Used |
Excimer Laser
|
Excimer Laser
|
|
Bowman's Layer |
Removed
|
Left Intact
|
|
Post-Op Medication |
3-6 months
|
1-2 weeks
|
|
Post-Op Visits (1st year) |
8-10
|
5
|
|
Functional Visual Recovery |
3-5 days
|
12-24 hours
|
| Risk |
Low Risk
|
Low Risk
|
| Risk
of Corneal Scarring |
1-3%
|
<1%
|
| Risk
of Infection |
<1%
|
<1%
|
Zyoptix personalized laser vision correction can
be performed using PRK or LASIK. The initial testing for
Zyoptix takes longer, however, the actual procedure is basically the
same from the patient's perspective.
Your physician will recommend the best surgical
solution for your vision correction.
If you have more questions about the options
available to you, please contact us.
Return to
Learn About LASIK Surgery
|
