1. THIS IS TECHNIQUE TO GET RID OF GLASSES. A NUMBER OF PROCEDURES ARE AVAILABLE TO GET SPECTACLE FREEDOM. THIS CAN BE SURFACE PROCEDURE CALLED PRK. IT CAN BE FLAP BASED CALLED LASIK. MORE RECENTLY SMILE HAS BEEN INTRODUCED WHERE A SMALL PART OF CORNEAL TISSUE CALLED LENTICULE IS FASHIONED AND REMOVED TO CORRECT EYE POWER. TO DECIDE ABOUT THE CHOICE OF PROCEDURE A LASIK WORKUP IS DONE BEFORE SURGERY. PATIENTS  WHO HAVE VERY THIN CORNEAS AND ARE UNFIT TO UNDERGO LASER SURGERY CAN BE MANAGED BY ICL, WHICH IS A VERY THIN LENS AND IS IMPLANTED INSIDE  THE EYE TO CORRECT  POWER OF GLASSES. IT CAN EVEN CORRECT CYLINDRICAL POWER OF THE EYE.