Lasik is the most commonly performed refractive surgery technique in the United States. It has a track record spannning over 20 years internationally and 12 in the US. This technique is used to correct myopia or nearsigtedness, hyperopia or farsightedness and astigmatism.
The LASIK procedure starts with a flap, and this important step can impact patient recovery and the overall quality of the result.
The cornea is on average 500 to 550 microns thick. Most surgeons using traditional methods make flaps that are in the neighborhood 140 microns thick. In addition, laser treatments can consume as much as 120 microns of tissue. Residual thickness refers to the amount of corneal thickness that is untouched by the LASIK procedure. Most surgeons would agree that a residual thickness of 300 microns provides a high level of safety with minimal risk although some will leave as little as 250 microns. By creating a thinner flap (as thin as 75 microns) some surgeons can preserve corneal tissue and increase safety.
Thinner flaps may also enhance the effectiveness of Wave Front guided procedures. In correcting minor focusing aberrations, the laser is making very subtle adjustments to the surface shape similar to the wave in a potato chip. A thin flap is more likely to conform to these subtleties.
If the whole idea of flap makes you nervous you could consider Intralase or PRK.
The laser is applied to the exposed tissue. This creates the necessary power change for the eye usually taking less than 60 seconds.
The flap is replaced and is held in place without stitches. A powerful suction force developed by the endothelial cells that line the inside surface of the cornea hold the falp in place.
After your procedure you will use drops for two weeks. These drops prevent infection and control inflammation. during the following weeks, the surgeon will ask you to use lubricating eye drops. These promote healing and ensure comfort.
You will be asked not to go swimming for one month after the procedure.
You will not be able to use eye makeup pfor one week after the procedure.
You will be using a clear plastic eye patch to bed for one week after the procedure. The patch is taped in place and lowers the risk that you will rub your eyes during you sleep.
Many people see at 20/20 the day after their procedure.
