What Is SMILE Eye Surgery?

SMILE stands for Small Incision Lenticule Extraction. It is a minimally invasive laser vision correction procedure that uses a femtosecond laser to create a thin, lens-shaped piece of tissue inside the cornea. This tissue, called a lenticule, is then removed through a small incision to reshape the cornea and improve how light focuses on the retina.

Unlike traditional LASIK, SMILE does not require creating a large corneal flap. This makes it a suitable option for some patients, especially when preserving more of the corneal surface is preferred. However, the best treatment option can only be determined after a complete eye and corneal assessment.

Who May Be a Good Candidate for SMILE?

SMILE may be suitable for adults with stable vision measurements, healthy eyes, and appropriate corneal thickness and shape. It is often considered for patients with nearsightedness, with or without certain levels of astigmatism.

• Patients with stable prescription measurements.
• People with nearsightedness who want to reduce dependence on glasses or contact lenses.
• Some patients with astigmatism, depending on the examination results.
• Patients with healthy corneal thickness and corneal shape.
• Individuals looking for a flapless laser vision correction option.

When Is SMILE Not the Best Option?

SMILE is not suitable for everyone. It may not be recommended for patients with unstable vision, abnormal corneal shape, keratoconus, severe dry eye, certain eye diseases, or corneal thickness that does not meet safety requirements.

A full preoperative examination is essential before deciding whether SMILE, LASIK, PRK, or another vision correction option is most appropriate.

How Is SMILE Eye Surgery Performed?

Before the procedure, numbing eye drops are applied to keep the eye comfortable. The surgeon then uses a precise femtosecond laser to create a lenticule inside the cornea. This lenticule is removed through a small incision, changing the shape of the cornea and improving the way light enters the eye.

The procedure is usually completed quickly and does not typically require stitches. After surgery, patients receive specific instructions regarding eye drops, follow-up visits, and activities to avoid during the early recovery period.

SMILE vs LASIK: What Is the Difference?

Both SMILE and LASIK are laser vision correction procedures, but they are performed differently. LASIK usually involves creating a thin corneal flap before reshaping the cornea with laser energy. SMILE, on the other hand, is performed through a small incision and does not require a large flap.

This difference may make SMILE a good option for some patients, but it does not mean it is the best choice for every case. The decision depends on the patient’s prescription, corneal structure, tear film quality, lifestyle, and overall eye health.

What to Expect After SMILE Surgery

Vision often starts improving within the first few days after SMILE surgery, although recovery speed can vary from one patient to another. Some patients may experience temporary blurry vision, dryness, mild irritation, glare, or light sensitivity during the early healing period.

Following the doctor’s instructions is important for a smooth recovery. Patients should avoid rubbing the eyes, swimming, eye makeup, and direct water exposure for the period recommended by the doctor.

Benefits of SMILE Eye Surgery

• Flapless laser vision correction procedure.
• Small corneal incision.
• May reduce dependence on glasses or contact lenses in suitable patients.
• Can be suitable for active lifestyles in selected cases.
• Performed using precise femtosecond laser technology.

Is SMILE Eye Surgery Safe?

SMILE is a recognized laser refractive procedure, but like any medical procedure, it has potential risks and side effects. These may include temporary dryness, glare, halos, blurry vision, or the need for further evaluation in some cases.

Safety depends heavily on proper patient selection, accurate measurements, advanced diagnostic testing, and careful follow-up after the procedure.

Why Is a Preoperative Eye Exam Important?

A detailed eye exam is the most important step before SMILE surgery. During the evaluation, the doctor checks the prescription, corneal thickness, corneal topography, tear film quality, eye pressure, and overall eye health.

These tests help determine whether SMILE is suitable and whether another procedure may be safer or more effective for the patient’s eyes.