How laser eye surgery works

If you’re considering having laser eye surgery, it’s only natural that you’ll want to get as much information as you can about the procedure and how it works. There are a number of different treatments available nowadays, each of which uses a slightly different method. At Optegra, we offer LASEK, LASIK and SMILE surgery, and in the following post we’ll take a look at how each procedure works to help prepare you for what to expect.


SMILE laser eye surgery

Let’s begin with ReLEx SMILE laser eye correction. This is a bladeless, minimally invasive form of keyhole laser eye surgery, which is one of the most innovative and technologically advanced forms of laser eye treatment available today. The surgery involves a state-of-the-art Carl Zeiss VisuMax laser which is renowned for being extremely precise. Benefits of this technology include:
  • Patients only need to concentrate on a light for a few seconds
  • Eye dehydration is minimised
  • Treatment is quick  
During the treatment, an experienced ophthalmic surgeon will direct the laser on the centre of the cornea. The series of pulses that are generated will result in tiny bubbles, 1/100th of the width of a strand of human hair, forming an outline around the cornea. The laser then generates a tiny connecting tunnel, through which your surgeon will draw out tissue to change the cornea’s shape. This laser eye surgery method doesn’t involve a flap being created, so there is no risk of flap complications.


LASIK eye surgery

LASIK eye surgery is the most well-known form of laser eye treatment. The procedure is blade-free and painless, and can be carried out in around 15 minutes per eye. At Optegra, we use a femtosecond laser for LASIK procedures, which is one of the most advanced lasers of its kind.
 
LASIK eye surgery involves the creation of a flap to correct vision. Your surgeon will begin the process by lifting back the outer layers of the cornea tissue. This is a transparent tissue layer that rests on the top of the eye, and lifting this layer back allows the deeper cornea tissue to be revealed. In order to do this, your surgeon will use the femtosecond laser. The laser sends microscopic laser pulses onto the cornea, which results in the formation of bubbles underneath, allowing a flap to be created. The surgeon can then painlessly and easily lift and lay back the flap, so they can then use an Excimer laser to reshape the cornea and correct the refractive error. After this, the flap is replaced, and the surgeon will smooth it back into place ready to begin the healing process.


LASEK eye surgery

Finally, we have LASEK eye surgery, which is a popular choice for those who are not able to have LASIK laser eye treatment. This treatment involves the use of an Excimer laser, and does not involve a flap being created. To carry out this treatment, your surgeon will loosen and fold back the cornea’s fine surface layer. They will then use the Excimer laser to reshape the cornea’s surface and correct the eye’s refractive error. The main advantage associated with Excimer lasers is the high amount of precision they can offer, at an extremely low UV wavelength. 
 
Hopefully, you now have a better understanding of the different methods of laser eye surgery used here at Optegra, and how each procedure works. We use cutting edge technology for all of our laser eye treatments, as well as offering world-class ophthalmic surgeons, to help ensure the best possible results and safety for our patients. If you think laser eye surgery could be right for you, book a free consultation to talk things through with one of our ophthalmic surgeons.


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