It is a modern technique used in the treatment of nearsightedness in which a femtosecond laser is used to separate a thin part of the corneal cortex, then the doctor extracts this part through a pocket in the cornea without the need to lift a layer or crust from the cornea (the fold) as in the cases of LASIK of all kinds

It is a modern technique used in the treatment of nearsightedness in which a femtosecond laser is used to separate a thin part of the corneal cortex, then the doctor extracts this part through a pocket in the cornea without the need to lift a layer or crust from the cornea (the fold) as in the cases of LASIK of all kinds