Know All About Custom LASIK
What is LASIK?
Custom LASIK can be simply defined as; it is the technique of changing the shape of the
cornea by using Laser. Custom LASIK restores your distance vision by correcting your
astigmatism, short-sightedness and long-sightedness. It can be achieved by using a cool
Excimer laser to reshape your cornea. It does not produce any type of heat nor penetrate
the corneal surface.
Custom LASIK uses advanced wave front technology to evaluate unique characteristics of
your eyes. The characteristics of each person’s eyes are different. Hence Custom LASIK
uses detailed information and reshapes your eye during the vision correction procedure by
using Excimer laser. Custom LASIK procedure is much more effective than conventional
LASIK.
While doing the routine eye checkup, your doctor will check your sight by changing various
lenses and ask you that if you are able to see the letters from the eye chart clearly. It’s really
hard to choose the correct lens from all among them as they look quite similar. In Custom
LASIK, the power of lenses is measured in 0.01D units which are required to correct your
vision. Hence, it is very easy to get the accurate lenses for your eyes by using the Custom
LASIK technique. A computer chooses the lens which most accurately corrects your
visionvery instantly, instead of making yourself decide the correct one.
For Custom LASIK, the much greater precision of measurements are taken which are
gathered from various reference points on the front surface of the eye. To create a detailed
map of the refractive error and focusing imperfection, the data have to be gathered called
as higher-order aberrations for the entire cornea. Custom LASIK is used to program the
laser to deliver a 100 percent personalized vision correction.
Custom LASIK are classified into three different types given below.
Wave front-guided LASIK
Wave front-optimized LASIK
Topography-guided LASIK
Wave front-guided LASIK: For your eyes anatomy and vision correction, the laser
treatment is completely personalized. Wave front-guided LASIK reduces irregular higher
order aberrations which reduces visual clarity to correct nearsightedness, astigmatism and
farsightedness.
Wave front-optimized LASIK: To preserve the natural aspheric shape of your cornea, the
wave front-optimized LASIK uses detailed measurements of the curvature of the front
surface of your eye. It reduces the risk of higher-order aberrations called spherical
aberration. Some other types of laser vision correction procedures causes spherical