Laser Eye Surgery Recovery & Success Rate
Before any intervention can be considered the doctor must assess many
factors in determining eligibility of a patient for LASIK or laser
techniques. It requires that the myopia or hyperopia be stable (the
correction with glasses or contact lenses no longer changes for over a
year). Candidates for refractive surgery should be over18 years of age.
The myopia must be less than 10D, and hyperopia less than 6D, and
astigmatism less than 4D to achieve the hoped for good result with
excimer laser surgery. Various eye or other contrary indications (con’s)
the process and, where appropriate, surgeons may advise waiting for some
change in eye function before proceeding.
Other diseases may complicate the intervention and thereby increase the
risk of complications. The patient who suffers from one of these
conditions must discuss eligibility and expectations with his doctor.
Some patients have a profile compatible with the different techniques,
while others are more likely to benefit from LASIK, or conversely of
surgery surface (PKR, LASEK). The degree of correction to make to the
corneal topography, the thickness of the cornea are all key elements in
the choice of technology best suited to a given patient.
The LASIK has the advantage of a quick recovery visual comfort and a
higher than operating techniques surfaces. To be feasible, we need the
cornea is thick enough and presents a regular geometry (no significant
deformation asymmetric). Indeed, it must not be made in cases of
pre-existing corneal fragility as cutting could exacerbate the fragility
and lead to a volatile post-op.
When LASIK is not indicated for these reason (cornea thickness less than
normal, slightly asymmetrical corneal deformation measured the corneal
topography), it is usually possible to propose a technical surface
intervention.
All studies published in the scientific literature show that LASIK and
techniques on the surface provide equivalent results for the care of
visual defects of moderate and average (up 6D of myopia, hyperopia of
4D, 3D d Astigmatism).
In the case of corneal pathology proved, carrying out a laser refractive
surgery is inappropriate. That is partly why it is important to make a
corneal topography and a measure of the depth of the cornea to confirm
the eligibility of a patient and make the choice of technology best
suited to their needs.
In cases of dry eye (frequent treatment or permanent artificial tears),
it is often preferable to opt for a technical surface intervention,
because LASIK can exacerbate dry eye of a transitional post-op.
Refractive surgery is no exception to the rule that there is no surgery
without risks. Even if it is very low, complications ranging from the
innocuous to the most serious are possible. These complications remain
outstanding and complications of the most benign to the most serious are
also possible including loss of sight.
Among the possible consequences of these complications, we can cite the
perception of halos, a tendency to see a glare, dry eyes, a reduction of
visual acuity even with correction, discomfort in night vision, split
vision, distortion of images, lowering of the upper eyelid.
These transient or permanent complications may require medical or
surgical treatment. In exceptional cases, as with any eye surgery,
complications can take a serious nature leading to loss of vision or
even loss of the eye. This event is so exceptional that its frequency is
impossible to assess.
The majority of surgeons believe that patients who are not
inconvenienced by contact lenses should carefully evaluate the pros and
cons of LASIK or the PKR. Some professions or sports or recreation
require a minimum of tenths of visual acuity without correction and can
pose an indication of refractive surgery. |
