Corneal Elastography and Patient Specific Modeling

This study uses a specialized ultrasound technique called elastography to measure the stiffness of the cornea (the clear front surface of the eye) in patients with keratoconus (a condition where the cornea thins and bulges) and in patients undergoing LASIK laser eye surgery. The goal is to improve surgical planning and predict outcomes using patient-specific computer models. You may be eligible if: - You are between 16 and 80 years of age - You have been diagnosed with keratoconus, OR you are scheduled to undergo LASIK laser vision correction You may NOT be eligible if: - You are unable to provide informed consent (e.g., non-English speaker without an interpreter, or cognitive impairment without a legal guardian) Talk to your doctor to see if this trial is right for you.