Use of the VisuMax™ Femtosecond Laser

Inclusion Criteria: * Male and female subjects age 22 years of age and older; * Spherical myopia from ≥ -1.00 D to ≤ -8.00 D, with ≤ -0.50 D cylinder and MRSE ≤ -8.25 D in the eye to be treated; * A stable refraction for the past year, as demonstrated by a change in MRSE of ≤ 0.50 D in the eye to be treated; * A difference between cycloplegic and manifest refractions of \< 0.75 D spherical equivalent in the eye to be treated; * UCVA worse than 20/40 in the eye to be treated; * BSCVA at least 20/20 in the eye to be treated; * Discontinue use of contact lenses for at least 2 weeks (for hard lenses) or 3 days (for soft lenses) prior to the preoperative examination, and through the day of surgery; * All contact lens wearers must demonstrate a stable refraction (within ±0.5 D), as determined by MRSE, on two consecutive examinations at least 1 week apart, in the eye to be treated; * Central corneal thickness of at least 500 microns in the eye to be treated; * Willing and able to return for scheduled follow-up examinations; * Able to provide written informed consent and follow study instructions in English. Exclusion Criteria: * Mesopic pupil diameter \> 8.0 mm; * Cylinder \> -0.50 D; * Treatment depth is less than 250 microns from the corneal endothelium; * Eye to be treated is targeted for monovision; * Fellow eye has BSCVA worse than 20/40; * Abnormal corneal topographic findings, e.g. keratoconus, pellucid marginal degeneration in either eye; * History of or current anterior …