Lasik stands for laser-assisted in situ keratomileusis, and is a surgical procedure used to “cure” shortsightedness, longsightedness, or astigmatism. “Keratomileusis” is the carving of the cornea in order to reshape it. Lasik Permanently changes the shape of the cornea using a special lazer called an eximer lazer.
As the laser reshapes the cornea, it changes the angle at which you see images and therefore strengthens your vision significantly. This reshaping adjusts and strengthens the power of your cornea to focus on objects near and far. If you are nearsighted, your doctor uses the laser to flatten your cornea that is too-steep. If you are farsighted, your doctor uses the laser to make your cornea steeper because it is too flat. For astigmatism, the laser can be used to smooth an irregular cornea into a more smooth shape. There are few other procedures like Lasik Eye Surgery that can give you these amazing results and permanently change the shape of your cornea in just minutes.
The lasic procedure of lasik is:
- A suction ring is placed on the eye to stabalize and monitor pressure
- A microkeratome, a cutting instrument, is attached to the suction ring. This blade cuts a flap in the cornea
- The exposed inner layer of the cornea is reshaped with an eximer lazer
- The corneal flap is returned to the original position
The patient walks in to the surgery, have the procedure, and walk out again being awake the whole time. The doctor performing the surgery may also administer a mild oral sedative.
The marketing for this procedure says that lasik provides benefit to millions of people, however, it doesn’t really solve the underlying cause of poor vision. If they were myopic before, their eye is still mis-shapen. They may be able to see perfectly well after the surgery, but years down the line myopia may return. There are also possibilities of complications that could affect your vision.