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Small Incision Lenticule Extraction
By Most skilled Laser Vision Correction Surgeon in NYC, NJ - Dr. Ilan Cohen

Small Incision Lenticule Extraction (SMILE)

The Revolutionary Laser Vision Correction Surgery

Small Incision Lenticule Extraction (SMILE) is a laser vision correction surgery that became popularized for the treatment of myopia and astigmatism since 2016. It is the most recently developed refractive laser eye surgery. It is performed on the cornea (the front surface of the eye), similar to LASIK and PRK, but it has some unique features that might be more suitable for some patients.

Of course, there are many unique features to each type of vision correction surgery and no one solution is best for everyone, or even for the majority of people. For example, neither LASIK nor SMILE are the best option for reading vision if you are over 45. For the best correction of both near and distance vision, the preferred option is Clear (Refractive) Lens Exchange. Here, we compare the advantages and disadvantages of SMILE vs LASIK and PRK.

Dr. Ilan Cohen Has Performed Over 80,000 Vision Correction Procedures.

Dr. Cohen is a fellowship-trained cornea specialist and has devoted his career to fine-tuning and perfecting surgical techniques that can change your vision and your life. This is perhaps the reason that more than 1,000 physicians have chosen him for the correction of their own vision.

How SMILE Surgery Works

Using a laser, the SMILE procedure cuts a tiny, disc-shaped piece of tissue called a lenticule from within your cornea. This lenticule is then removed from the cornea via a small incision. This process reshapes the cornea, and in turn, corrects and improves the patient’s eyesight. The whole treatment takes less than 15 minutes for each eye.


SMILE has become a popular alternative to LASIK as it is generally considered a less invasive procedure. During LASIK, a circular corneal flap is created, then lifted. A laser is then used to reshape the inner cornea for vision correction. The incision made during SMILE is smaller than the one made during LASIK, and some would even go as far as calling this a flap-less LASIK procedure. This description is not accurate. A flap is created, but not lifted as it is in LASIK surgery. This is the reason that some patients that already suffer from dry eyes may benefit more from SMILE. The risk of dry eyes is low with LASIK, and even lower with SMILE, but still not zero.

SMILE is also less likely to cause complications such as flap-related problems and corneal thinning, as there is minimal disruption of the eye’s structure.

The complete treatment takes less than 15 minutes per eye, and patients usually report little pain, and quick recovery periods.

Lasik Smile



A large flap is made to reshape your cornea

A small incision is made to reshape your cornea

Time it takes to see 20/20

About 1 day

About 1 week

Risk of dry eyes

Very low

Even lower but not zero

Astigmatism treatment



Irregular Astigmatism treatment

Very low

Even lower but not zero

Sharpness of vision

Best (with Contoura)


Use of blade



Long term track record

25 years

7 years

Who is a Good Candidate for SMILE?

SMILE is a safe and effective option for patients who are looking to correct their vision. However, not everyone is a good candidate for SMILE. The ideal candidate for SMILE has the following attributes:

It is important to note that SMILE is not suitable for patients with severe nearsightedness or those with thin corneas. It is also not available for patients who are farsighted or who have high levels of astigmatism or irregular astigmatism. LASIK or PRK surgery may be a better option for these patients.

Am I a Candidate?

Dr. Cohen in the News

Fox News

Dr. Sapna Parikh reports on the very first case of an ICL in New York performed by Dr. Ilan Cohen.

CBS 2 News
An artificial corneal transplant is a complex surgery that is reserved for patients that have corneal blindness and are not otherwise candidates for a traditional corneal transplant.
ABC 7 News

The surgeon, Dr. Ilan Cohen talks about “the unique” features of Implantable Collamer® Lens surgery as compared with LASIK.

What to Expect During and After SMILE Surgery

The SMILE surgery is done as an outpatient operation. To decrease pain during the surgery, the surgeon will apply numbing drops to the patient’s eyes prior to the treatment.

Often, patients will feel pressure on their eyes when the surgeon makes the incision and removes the lenticule. They should not, however, feel any discomfort.

Patients may suffer some pain after the surgery, such as dryness, itching, and sensitivity. They must use eye drops for many weeks and refrain from scratching their eyes or engaging in intense activities. The majority of patients may return to work and regular activities within a few days following the treatment.

Lasik Team


SMILE is a safe, effective, and minimally invasive laser vision correction surgery. It has some benefits and some drawbacks when compared with LASIK (please see the comparison chart). It is a fast and comfortable procedure that can help patients achieve clearer vision without the need for glasses or contact lenses. If you are interested in SMILE surgery, book an appointment with us today to see if SMILE is a good option for you.
Lasik Team

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Refractive Surgery Quiz

At Cohen eye Institute we offer a wide menu of Refractive Surgery. From Lasik to EVO- ICL. This quiz will help us help you tailor your vision to your lifestyle needs.