What is involved in laser eye surgery for astigmatism?
Laser eye surgery for astigmatism includes anesthetic eyeballs and a very small cut of the cornea to transform it. The ultraviolet laser emits the pulsating light on the cornea that regulates the shape with precise measurements of the computer. The eyelids are held open with a speculation and a small ring prevents the eye from moving during the procedure. After surgery, the patient returns home and it takes several days to several months to complete recovery, depending on the type of laser surgery.
Laser assisted in situ keratomileusis (lasik) is a common form of eye surgery for astigmatism and is a painless and simple way of correction of vision. The surgeon adjusts the laser beam for the shapes of the lenses of individual patients. While the patient looks at the light, the ultraviolet rays convert the cornea to a normal shape. The conversion usually takes less than five minutes to the eye.
Photorefractional keratectomy (PRK) is an alternative method of laser eye surgery proastigmatism. Transforms the surface of the cornea instead of treating the bottom withCornea tran, as a lasik does. One of the disadvantages of this type of laser eye surgery for astigmatism is a longer recovery time, often up to three months, to achieve corrected vision. Some patients who have undergone PRK surgery report that they see glare or halo in a weak light that can become a permanent side effect. Lasik and PRK Laser eye surgery for astigmatism costs approximately the same.
astigmatism is a common problem of vision that occurs when the cornea develops an elliptical shape instead of a normal sphere. When light enters the eye of a person with astigmatism, it is divided into two areas of focus on the retina in the rear of the eye. People with astigmatism cannot see objects that are far or close. Although there are temporary solutions, laser eye surgery for astigmatism can correct the problem permanently the need for contact lenses or glasses.
before surgery lThe doctor evaluates the cornea by measuring his thickness and determining how the pupil expands and how the light is attracted from the eye. Those who wear gas permeable contact lenses should not use them a few weeks before the operation. If other types of contact lenses are worn, they should avoid them three days before the procedure. Sometime after surgery, the surgeon lays the dressing lenses to the eye and the bandage is worn for several days to get the cornea.
Some people who undergo laser surgery lasik laser for astigmatism will enjoy the improved vision immediately after surgery, while others have to wear steering or reading glasses until the cornea is completely heard. With a PRK operation, the vision may not be corrected for up to six months. Potential complications of Lasik and PK surgery include eye infections, dry eyes and the possibility that vision will become a lesse acute after surgery.