What Happens During LASIK: Minute-by-Minute Procedure Walkthrough

Before You Enter the Laser Room

The anxiety of not knowing what to expect is usually worse than the procedure itself. Most patients describe LASIK as "anticlimactic" — the buildup is significant, but the actual experience is brief, painless, and surprisingly mundane. Here's what happens, broken down into the steps you'll actually experience.

30 minutes before: preparation

You'll be given a mild sedative (typically 5-10mg of Valium or equivalent) to reduce anxiety. This won't put you to sleep — you'll be fully conscious and conversational — but it takes the edge off. Numbing drops are applied to both eyes. These work immediately and completely: you won't feel pain during the procedure. You'll be asked to remove any jewelry, and your face will be gently cleaned around the eye area.

5 minutes before: entering the suite

You walk into the laser suite and lie down on a reclining chair beneath the laser system. The surgeon positions your head and places a small speculum over one eye to keep it open — this sounds uncomfortable but feels like mild pressure, nothing more. You won't need to worry about blinking.

The Procedure: ~15 Minutes Total

Step 1: Flap creation (1–2 minutes per eye)

A suction ring is placed on your eye, which creates a sensation of pressure — like someone pressing a finger firmly against your closed eyelid. Your vision dims or goes dark for about 20 seconds. This is normal and temporary. The femtosecond laser creates a thin flap in your cornea using rapid pulses of light. You may see a pattern of lights or hear a clicking sound. The surgeon then gently lifts this flap to expose the tissue beneath.

Step 2: Laser reshaping (30–60 seconds per eye)

This is the actual vision correction step, and it's remarkably fast. You're asked to look at a green blinking light. The excimer laser delivers precisely calculated pulses to reshape your cornea. Modern eye-tracking systems follow your eye position thousands of times per second — if your eye moves, the laser follows. If you move too much, it pauses automatically.

You'll hear a rapid clicking sound (the laser firing) and may notice a faint smell — this is normal and harmless, caused by the laser interaction with tissue. The entire ablation takes 30 to 60 seconds depending on your prescription.

Step 3: Flap repositioning (30 seconds per eye)

The surgeon carefully replaces the corneal flap, smoothing it into position. The flap adheres naturally within seconds — no stitches are needed. A few more drops are applied, the speculum is removed, and the process repeats on the second eye.

Immediately After: The First 4 Hours

You sit up from the chair and can already see — not perfectly, as if looking through a foggy window, but shapes and colors are noticeably clearer than your uncorrected vision was before. Your eyes will feel watery and slightly irritated, like you've been swimming in a chlorinated pool.

You're given protective goggles (wear them), more drops, and instructions. Someone drives you home (you cannot drive). The single most important instruction: go home and sleep. A three to four hour nap is the best thing you can do for your recovery. When you wake up, most patients experience their "wow moment" — clear vision, often better than what their glasses provided.

What You Won't Feel

Pain. Full stop. The numbing drops are effective, and the laser itself is not felt at all. The suction ring creates pressure but not pain. The speculum is mildly annoying but not painful. The overwhelming consensus from patients is that the anticipation was far worse than the experience.

LASIK Procedure in Colombia: Any Difference?

The procedure is identical to what you'd experience in New York, London, or Toronto. The same laser platforms (Alcon WaveLight, Zeiss VisuMax, Johnson & Johnson iDESIGN), the same surgical technique, the same numbing drops. The surgeon may speak to you in English throughout, or a bilingual coordinator may be present to translate. Many Colombian ophthalmologists trained in the US or Europe and are fully fluent in English.

The clinic environment may feel slightly different — many Colombian facilities are newer and more modern than their US counterparts, having been built in the last decade specifically for international patients. The pre-op and post-op waiting areas tend to be more attentive and less rushed than high-volume US LASIK chains.