Clinical Research Directory

Inclusion criteria. * 21 years or older. * A physician or medical student. * Have the ability to give informed consent. * Speak and read English fluently. * Have not previously had any form of refractive surgery, including prior LASIK or cataract surgery. * May benefit from increased spectacle independence. * Have been determined to be a good candidate for the LASIK, SMILE or PRK procedure based on the investigator's assessment of medical and ophthalmic health, general cognitive function, and physical and social limitations. * Have a treatment target of bilateral emmetropia. * Express willingness and potential ability to return for all follow-up examinations through the 12-month follow-up exam under the care of the treating investigator. * Are not enrolled in any other research study. Exclusion criteria. * Subjects under the age of 21. * Patients with excessively thin corneas. * Patients with topographic evidence of keratoconus. * Patients with ectatic eye disorders. * Patients with autoimmune diseases. * Patients who are pregnant or nursing.