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.
The treatment with lasek is indicated for myopia until –8 dioptres, hypermetropia until +3 dioptres and astigmatism until 5 dioptres. The superficial cell cover (epithelium) of the cornea is very carefully released and pushed aside or totally removed. Afterwards, with excimer laser the desired treatment is applicated after wich a protective contact lens is applied on top of the cornea.