Contact lenses can change the shape of your cornea similar to how a watchband can make an imprint on your wrist. If you have your eyes examined too soon after removing your contact lenses, several of the eye tests could give inaccurate results and negatively influence your surgical outcome. Discontinue wearing soft contact lenses according to the doctor's recommendation prior to the preoperative measurements and surgery. Rigid gas permeable (RGP) contact lens wearers may require a more protracted amount of time out of lens wear. Our Doctor will advise you if your corneas have not returned to their natural shape after removing your contact lenses.