| Age 18 years or older with appropriate expectations |
| Stable refraction at least one year |
| Myopia between -.50 and -12.00 diopters |
| Astigmatism ≤5.00 diopters |
| Hyperopia <+6.00 diopters |
| Absence of ocular contraindications: |
| Keratoconus, pellucid marginal degeneration, keratoglobus |
| Herpetic keratitis |
| Progressive myopia |
| Corneal disease* |
| Glaucoma* |
| Cataract* |
| Any other preexisting pathology of the cornea or anterior segment, including scarring, lagophthalmos, severe dry eye and blepharitis* |
| Absence of medical contraindications |
| Uncontrolled vascular disease |
| Autoimmune disease |
| Immunosuppressed/immunocompromised |
| Pregnant or nursing |
| History of keloids |
| Diabetes mellitus |
| Absence of use of systemic medication such as isotretinoin, amiodarone |
