Posted by: SightTrust Eye Institute in About, LASIK, Refractive Surgery

If you’re exploring options for vision correction, you’ve likely come across LASIK – it is one of the most well-known procedures for reducing dependence on glasses and contacts. But there’s another effective approach gaining attention: SMILE.

At SightTrust Eye Institute, patients have access to advanced vision correction technologies including LASIK, SMILE, PRK, and other personalized options. Understanding the difference between SMILE and LASIK can help you make a more confident choice about your vision care.

What Exactly Is SMILE?

SMILE stands for Small Incision Lenticule Extraction. It’s a minimally invasive laser procedure used to correct nearsightedness and astigmatism by reshaping the cornea – the clear front surface of the eye – without creating a full flap.

Here’s how it works:

  • A specialized femtosecond laser creates a small, lens-shaped piece of tissue (called a lenticule) inside the cornea.

  • The surgeon then removes that lenticule through a tiny incision about 2–4 mm wide.

  • Removing the lenticule reshapes the cornea to correct your vision.

Because this technique doesn’t require a large corneal flap like LASIK does, SMILE is often described as flapless laser eye surgery and that can benefit certain patients in recovery and long-term eye surface stability.

What Is LASIK?

LASIK (Laser-Assisted In Situ Keratomileusis) is a widely performed refractive surgery that also corrects nearsightedness, farsightedness, and astigmatism by reshaping the cornea.

Here’s the LASIK process in a nutshell:

  • A very thin flap of corneal tissue is created.

  • The surgeon lifts that flap.

  • An excimer laser reshapes the underlying tissue to correct your vision.

  • The flap is replaced and heals naturally.

LASIK has a long track record of success and rapid visual recovery – many patients notice improved vision within a day.

How SMILE and LASIK Compare

Both procedures correct vision by reshaping the cornea, but they differ in technique and recovery.

Flap vs. No Flap

  • LASIK creates a thin corneal flap.

  • SMILE uses a small incision and does not create a flap.

Recovery

  • LASIK often delivers very sharp vision within 24 hours.

  • SMILE recovery is also quick, though vision may sharpen more gradually over the first few days.

Dry Eye
SMILE may cause less temporary dry eye in some patients because fewer corneal nerves are disrupted. Individual results vary.

Treatment Range

  • LASIK treats nearsightedness, farsightedness, and astigmatism.

  • SMILE primarily treats nearsightedness and some astigmatism.

    The best choice depends on your prescription, eye health, and lifestyle.

Which One Is Right for You?

There’s no single best option for everyone. At SightTrust, surgeons evaluate your prescription, corneal thickness, eye health, and lifestyle to recommend the safest and most effective procedure.

Some patients prefer the fast visual recovery and long track record of LASIK. Others choose the flapless approach of SMILE. SightTrust also offers additional options, including PRK and implantable lenses, for patients who may not be ideal candidates for laser surgery.

The SightTrust Difference

SightTrust combines advanced technology with personalized care. Procedures are tailored to each patient, and experienced surgeons guide every treatment plan.

Vision correction is an important decision. With the right evaluation and expert care, you can move forward with confidence.