Laser eye surgery itself takes less than 30 minutes for both eyes. The actual laser reshaping of your cornea lasts only seconds per eye. Most of the time you spend at the clinic, typically 2 to 3 hours total, goes toward preparation, final measurements, and a brief post-surgery observation period.
Time in the Operating Room
The surgical portion of LASIK takes about 10 to 15 minutes for both eyes combined, with each eye requiring roughly 5 minutes. That includes positioning, creating the corneal flap, applying the laser, and repositioning the flap. The laser itself fires for a surprisingly short window. Modern excimer lasers correct about one diopter of nearsightedness every 2 seconds, meaning a typical correction of 3 to 6 diopters requires somewhere between 6 and 12 seconds of actual laser time per eye.
For farsightedness, the laser works slightly slower, around 3 to 5 seconds per diopter. Either way, the reshaping step is over before most people fully register what’s happening.
SMILE, a newer procedure that skips the flap entirely, is similarly fast. The laser portion takes about 30 seconds per eye, with the full procedure wrapping up in just a few minutes per eye. PRK, the oldest of the three main procedures, has a comparable laser time but involves removing the outer layer of the cornea rather than cutting a flap, which changes recovery rather than surgical duration.
What Takes Up the Rest of Your Visit
Plan for 2 to 3 hours at the clinic from check-in to discharge. That time breaks down into several stages. First, staff will run final diagnostic measurements of your eyes to confirm or fine-tune the laser’s programming. You’ll then receive numbing eye drops so you won’t feel pain during the procedure. The surgical team will position you, clean the area around your eyes, and place a small device to keep your eyelids open.
After the procedure itself, you’ll rest briefly in a recovery area while the staff checks that everything looks normal. They’ll walk you through aftercare instructions, give you protective eye shields, and confirm your follow-up appointment. The surgery is the shortest part of the entire visit.
What the Procedure Feels Like in Real Time
During LASIK, the surgeon first creates a thin flap on the surface of your cornea using either a blade or a secondary laser. You may feel mild pressure during this step, which lasts only a few seconds. The flap is folded back, exposing the tissue underneath. The excimer laser then fires a series of rapid pulses, each one removing a microscopic amount of corneal tissue to reshape the curvature. You’ll be asked to stare at a fixed point of light, and the process is over quickly. The flap is then smoothed back into place, where it naturally adheres without stitches.
One detail worth knowing: if you can’t hold your gaze steady on a fixed object for at least 60 seconds, the FDA notes you may not be a strong candidate. Eye-tracking technology in modern lasers compensates for small movements, but basic steadiness still matters.
Recovery Time After Surgery
Your vision will be blurry immediately after the procedure, and your eyes may feel gritty, watery, or sensitive to light for several hours. Most people notice a significant improvement in clarity by the next morning. The majority of LASIK patients can drive within 24 hours, though you should confirm this at your follow-up appointment the day after surgery.
Returning to work typically takes 1 to 3 days, depending on your job. If you work on a computer, expect your eyes to tire more quickly in the first week or two. Frequent blinking, artificial tears, and regular screen breaks help during this adjustment period.
How Recovery Differs by Procedure
LASIK has the fastest recovery because the corneal flap protects the reshaped tissue almost immediately. Most people are functionally back to normal within a few days, with vision continuing to sharpen over the following weeks.
PRK recovery is slower. Because the outer layer of the cornea is removed rather than flapped, that surface needs to regenerate. Expect more discomfort in the first 3 to 5 days and a longer path to stable vision, often 2 to 4 weeks before clarity fully settles, with continued improvement over several months.
SMILE falls somewhere in between. There’s no flap to worry about, and the smaller incision generally means less dry eye afterward, but visual recovery can take slightly longer than LASIK in the first few days. Full corneal healing and final vision stabilization for all three procedures can take 3 to 6 months, even though day-to-day vision feels normal much sooner than that.