• Have a stable eyeglass prescription and be over the age of 18 years-old
• Have corrected visual acuity of better than 20/40 in both eyes
• Eyeglass prescription within treatable parameters and have enough corneal thickness for the procedure (less than 8 D of myopia, 3 D of astigmatism and 3 D of hyperopia)
• Acceptable wearing reading glasses after 40 years of age
• Free of strabismus (eye turns) or diplopia (prism in glasses)
• No history of retinal detachments or significant eye diseases
• Have overall good health and managed medical conditions
• Currently not pregnant