article: The principle of laser treatment
The basic idea of Lasik is the cornea of the eye is restructured with the help of the laser, so that its refractive power is changed. The cornea is flattened at the surface, this results in a weaker refractive power. A short-sightedness can be compensated. For example, taken during PRK procedures. PRK stands for photorefractive keratectomy. In the LASIK procedure, however, the flattening of the cornea does not occur on the surface, but inside the cornea, thus in the corneal stroma.
Before LASIK surgery, first the corneal thickness determined by ultrasound to ensure that it is also sufficient. To get to the corneal stroma, however, must first be "shaved off" a portion of the cornea. In principle, a slice of the cornea is separated and lifted up. After processing, the corneal stroma, this disc back folded down and grows by itself tight again, without that in this case something needs to be stitched.
correction through the Lasik
The Lasik is primarily for the correction of myopia, if it is not more than -10 diopters. Farsightedness can be corrected but also to a lesser extent (3 diopters). Astigmatism can also be treated with Lasik.
Notes
vision correction, you should generally make only when the eye has reached a stable state. The Dioptrinzahl should not be changing. Normally, this is from the age of 20 years the case. With other eye diseases, such as the glaucoma or cataracts, they should share just before treatment with the doctor about the risks in your case.
Keyword: LASIK surgery, laser treatment, short-sightedness
0 comments:
Post a Comment