The eye is not like “a football”, but more like a “rugbyball”. This produces a deformed image and can sometimes be combined with myopia or hyperopia.
This is the newest technique with which almost all refractive errors are corrected. Lasik is a combination of microsurgery and laser technology.
The excimer laser is directly applicated on the corneal surface. These causes a superficial lesion which is painful during 48 to
72 hours postoperatively. Hence, in most cases a protective contact lens is temporally applied. The eye sight stabilises during the following weeks or months.
This technique from the United States is meant for people with a thin cornea or other kind of corneal defect, which cannot be treated with lasik technique.