How is LASIK Performed?
LASIK stands for Laser-Assisted In Situ Keratomileusis. In the LASIK laser eye surgery procedure below a thin flap of tissue is cut, and then peeled back from the very front of the cornea (this is the transparent covering over your pupil). The laser literally vapourises away some of your corneal tissue beneath the flap to make your cornea a slightly different shape which will correct your refractive error. Then the flap is placed back over the front of your eye. LASIK eye surgery can be used to correct short-sightedness (myopia), far-sightedness (hyperopia), and astigmatism.
How is IntraLasik Performed?
IntraLasik is blade-free laser technology for performing the first step of the LASIK eye surgery procedure: creating the corneal flap. Prior to IntraLase bringing out this new technology, this first step was done manually using a hand-held device with an oscillating metal razor blade, called a microkeratome.
While LASIK laser eye surgery has proven to be a successful and relatively safe eye surgery procedure, the majority of complications with LASIK surgery arise from the use of microkeratomes.
The IntraLasik process makes LASIK eye surgery safer by replacing the hand-held microkeratome blade with the silent computer-guided precision of a laser, virtually eliminating severe sight-threatening blade-related LASIK complications as a result..
How is PRK Performed?
PRK laser eye surgery the epithelium (top layer of the cornea) is scraped off
and then the laser treatment is applied. A contact lens is used as a “bandage” to
decrease discomfort. The epithelium then grows back over the bare area during the
next few days.
LASEK laser eye surgery the epithelium is exposed to 20% alcohol which helps
separate epithelium from the cornea. The epithelium is pushed to one side
and laser treatment applied. The epithelial layer is replaced back onto
the eye and held in place with a contact lens. The contact lens is then removed
a few days later. LASEK eye surgery is hence a "no knife"/flap operation.
Epi-Lasik is a similar eye surgery
procedure that uses a keratome like that used for Lasik, but engineered to only
separate the epithelium. The epithelium is left on a hinge, laser treatment applied
and flap replaced.
The ACRILISA multifocal lens is used to provide patients with both DISTANCE and NEAR correction following Cataract or Lens Replacement surgery. Also known as MULTILEX at Centre for Sight (multifocal lens exchange) this is an excellent option for those looking for vision correction. For the lens to work astigmatism must be eliminated and this eye surgery procedure video also demonstrates a “Limbal Relaxing Incision” or LRI at the end to accomplish this correction. At Centre for Sight (www.centreforsight.com) with the introduction of the Bausch and Lomb Stellaris machine, the incision size has now been reduced by almost 50% at 1.8mm – and a eye surgery video demonstrating this will soon be available.