10 and an internal surface 16 respectively surface 16 is generally exposed when a flap 18 is formed in the surface of the cornea an inlay or implant 20 having a removable pliable sheet 22 with markings 24 thereon is positioned on the exposed surface of the cornea and the markings on the inlay are aligned with the markings 26 and 28 preferably this procedure is used for astigmatic correction but may be used with any type of correction to the vision of the eye to begin the refractive error in the eye is measured using wavefront technology as is known to one of ordinary skill in the art the refractive error measurements are used to determine the appropriate shape of lens or inlay 20 to best correct the error in the patient 39 s cornea preferably the inlay 20 is manufactured or shaped prior to the use of the wavefront technology and is stored in a sterilized manner until that specific inlay shape or size is needed however the information received during the measurements from the wavefront technology can be used to form the inlay using a cryolathe or any other desired system or machine as seen in fig1 the main optical axis or visual axis 30 of the eye is marked with a dot 32 or any other type of marking such as cross hairs or an x the exact position of visual axis 30 of the eye 10 is determined by asking the patient to focus on a small beam of light as is known in the art and the location on the corneal surface is marked using a marker such as ink preferably the ink is any.