Laser eye Surgery: how it works?

Laser eye surgery

 From ordinary spectacles to contact lenses and laser surgery, vision correction has come a long way. These new methods of correction help people by restoring vision back to a more normal state. They put forth an effort to lessen any refractive error by making light rays focus correctly on the retina.

Laser eye surgery, also known as refractive surgery has gained popularity amongst many. This treatment is useful for those who wish to reduce their dependency on glasses or contact lenses. The latest trend in laser surgery is a procedure called ?laser in situ keratomileusis?, also known as LASIK. The cornea permanently changes shape during this procedure. It is used to treat nearsightedness, farsightedness, and astigmatism. LASIK surgery is now more affordable but is not reversible.

The first step generally begins with the eye surgeon administering tests to check the suitability of LASIK for the patient. People who have dry eye syndrome, diseases like glaucoma, cataract or diabetes are strongly advised not to undertake the treatment.

The first phase of the operation is where the patient is made to sit on a reclined chair and drops of solutions are placed in an eye. After that the cornea is cleaned of floating foreign matter, then an instrument called a lid speculum is put over the eyes to keep the eyelids open. The ring is place right on the eyeball. Suction is then applied around the cornea. Patients experience blurring and dimming of vision. Then the surgeon uses a microkeratome (surgical knife) to create a thin, circular flap in the cornea.

After this the microkeratome and ring are removed. The doctor then makes the patient stare towards the light. This is done so that the eye stays focused on a fixed object. The pre-programmed laser then cuts corneal tissue, thereby reshaping it. After the cornea has been reshaped, the flap is replaced back with a preventative shield and is placed over the eyes to protect them from irritants.

The actual operation takes less than five minutes and most people experience improved vision after approximately 24 hours. It is considered very important to take care of the eyes after the operation. It is advisable not to drive for a few weeks. Postoperative check ups with the surgeon are recommended.

Laser eye surgery