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SMILE LASIK Surgery: How Is Anesthesia Administered?

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2026.07.30

SMILE LASIK Surgery: How Is Anesthesia Administered?

What to Expect from Needle-Free Anesthesia, Explained by an Ophthalmologist
Dr. Han Jung-yeop, Ophthalmologist
BGN Eye Clinic, Jamsil Lotte Tower Branch

TABLE OF CONTENTS
  • How is anesthesia administered for SMILE LASIK?
  • How do anesthetic eye drops work?
  • Pain levels and anesthesia duration during surgery
  • What if the anesthesia isn't fully effective?
  • Essential pre-surgery tips to keep in mind

"I'm getting eye surgery. How is anesthesia administered? Will I need an injection in my eye? What if the anesthesia doesn't work properly and I feel pain?"

Hello, this is BGN Eye Clinic at Jamsil Lotte Tower.

One of the most frequent questions patients ask before undergoing SMILE LASIK is how the anesthesia process works. Because the procedure involves such a sensitive organ, it is completely natural to feel anxious. In actual practice, SMILE LASIK relies entirely on topical anesthesia administered via numbing eye drops, meaning no injections are involved.

How Is Anesthesia Administered for SMILE LASIK?

Prior to SMILE LASIK surgery, topical anesthesia is applied to dull sensation in the eyes. This process does not stop overall eye function; instead, it temporarily reduces sensitivity only on the surface of the eye where the procedure takes place.

SMILE LASIK anesthesia is performed almost exclusively by applying numbing drops directly to the eyes. Many patients wonder, "Are eye drops alone really enough to numb the eye?" Anesthetic eye drops contain specialized compounds formulated to temporarily block surface sensation, and your surgeon will administer them in precise dosages prior to the procedure.

A short time after administration, surface sensitivity subsides, and the team proceeds with surgical preparations.

How Anesthetic Eye Drops Work & Sensations During Surgery

How do anesthetic eye drops work?

Anesthetic drops work on the surface of the eye to temporarily interrupt nerve signals around the cornea and conjunctiva. Because only surface sensation is dulled, you will remain comfortable while keeping your eyes open and looking at designated target lights as guided by your surgeon.

However, being numbed does not mean a complete absence of touch perception. You may still feel light pressure or the soft touch of instruments around the eye. This is a completely normal response under topical anesthesia and does not indicate a lack of numb effect.

What about pain during surgery?

Pain is naturally the primary concern for patients researching laser vision correction. While individual pain thresholds vary, SMILE LASIK is designed to minimize discomfort through carefully timed application of anesthetic drops prior to and throughout the procedure.

Rather than feeling pain, patients typically report sensations of light pressure or instrument contact. If you feel any discomfort at any point during surgery, simply inform your medical team immediately so they can evaluate your condition and take appropriate action.

Anesthesia Duration & Recovery Process

The duration of numbness varies depending on the specific anesthetic formulation used and individual physiology. Generally, the effect lasts predictably for a period following surgery before sensory feedback gradually returns.

As the anesthesia wears off, you might experience mild dryness or a sensation similar to having an eyelash in your eye. This is a standard part of the recovery phase. Following all post-operative eye drop schedules and care guidelines provided by your clinic is essential for a smooth recovery.

What If the Anesthesia Doesn't Work Well?

Patients sometimes ask, "If the anesthesia doesn't fully take effect, will it be difficult to perform the surgery?" Rest assured, your medical team verifies both your eye condition and the level of numbness before starting. Additional anesthetic drops can be administered whenever necessary.

High anxiety can cause tight blinking or excessive tearing, which may dilute or wash out eye drops during application. Remaining as relaxed as possible and following your care team's instructions will ensure a smooth numbing process.

Essential Tips Before SMILE LASIK Anesthesia

  1. Avoid squeezing your eyes shut: Nervousness can cause you to involuntarily strain or clench your eyelids. Keeping your facial muscles relaxed allows the numbing drops to absorb effectively.
  2. Share your concerns in advance: Feeling anxious about eye surgery is entirely natural. Discussing any questions or worries with your ophthalmologist beforehand helps ensure a reassuring and comfortable experience.


    BGN Eye Clinic Jamsil Lotte Tower Notice

    SMILE LASIK anesthesia relies entirely on painless topical eye drops, never direct injections. Because individual ocular characteristics vary, precise surgical suitability and procedures are determined through comprehensive diagnostic testing and doctor consultations.

    BGN Eye Clinic Jamsil Lotte Tower Branch conducts thorough diagnostic evaluations and tailored consultations across every phase of your vision correction journey.
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