Understanding SMILE Eye Surgery: Procedure, Benefits, and Side Effects

What is SMILE Eye Surgery?

SMILE eye surgery stands for Small Incision Lenticule Extraction. It is a groundbreaking technique for correcting refractive errors such as nearsightedness (myopia) and astigmatism. The latest SMILE PRO treatments on the VISUMAX 800 machine can also treat farsightedness (hypermetropia).

Here, the doctor will make a small incision (2mm). They use a high-precision Femtosecond laser (VISUMAX 500 / VISUMAX 800) that creates a small, round piece of tissue (lenticule) within the cornea. This piece is then taken out through the small incision, making the procedure a keyhole surgery with minimum tissue disruption. The removal of this tissue changes the shape of the front part of the eye (the cornea). This change in shape helps light focus perfectly on the retina (nerve of the eye), making your vision clearer without needing glasses or contact lenses.

The main goal of SMILE eye surgery is to help light focus properly on the back part of the eye (retina). This will allow you to see clearly without needing glasses or contact lenses. Most individuals experience significant improvements in their vision shortly after the SMILE eye procedure, often within the first 24 hours. 

SMILE is especially appealing for those who have issues with dry eyes or are involved in active lifestyles, as it doesn’t require creating a corneal flap (a layer of tissue on the front part of the eye requiring a larger cut), thus minimising complications.

Benefits of SMILE Surgery

One of the most significant benefits of SMILE eye surgery is its minimally invasive nature. 

The small incision means less disruption to the front part of the eyes (cornea), which often results in quicker recovery times and reduced discomfort compared to traditional LASIK surgery. Many patients report feeling only slight pressure during the procedure, with no pain during the procedure or afterwards.

Another advantage is the lower risk of post-operative dry eye syndrome. Traditional LASIK can sometimes damage the corneal nerves. This can lead to dryness. SMILE eye surgery preserves more nerve endings. Hence, patients often enjoy a more comfortable healing process. 

Most patients can expect a rapid visual recovery, allowing them to return to daily activities within a day or two.

SMILE eye surgery is also suitable for a broader range of prescriptions, making it an excellent option for those with higher degrees of nearsightedness or astigmatism. The long-term results are promising, with many individuals achieving 20/20 vision or better, significantly enhancing their quality of life.

SMILE Eye Surgery Procedure

The SMILE eye procedure is designed to be quick and efficient. 

Before the surgery, patients undergo a thorough series of eye examinations to ensure their eligibility for the procedure. This includes checking the thickness of the cornea and assessing overall eye health.

On the day of the surgery, the patient is seated comfortably. Anaesthetic eye drops are applied to numb the eye. This ensures that the procedure is painless. 

The surgeon then uses a femtosecond laser to create the lenticule and a small incision in the cornea. The lenticule is carefully removed through the incision. This reshapes the cornea to improve vision.

Patients can expect to have mild  discomfort and slight tearing as the anaesthetic wears off. This typically subsides within a few hours. 

Patients are advised to rest and avoid any strenuous activities for a initial few hours. Follow-up visits on post operative day 1, day 14 and day 90  are scheduled to monitor healing and ensure optimal results.

Who is a Suitable Candidate for SMILE Surgery?

Not everyone is a suitable candidate for SMILE eye surgery. Ideal candidates are typically at least 18  years old and have stable vision for at least a year. Individuals with myopia ranging from -1 to -10 diopters or astigmatism up to 4 diopters may be eligible. Diopters are a unit of measurement to express the optical power of a lens.

Good candidates also have healthy corneas without any scarring or irregularities. 

Patients who are active and have concerns about dry eyes often find SMILE to be an excellent option due to its minimally invasive nature. 

If you have certain conditions like glaucoma, cataracts, or uncontrolled diabetes, your eye care professional may recommend other treatment options.

Consulting with a specialist at Nethradhama Super Specialty Eye Hospital can help determine if the SMILE procedure is the right choice for you.

Who Shouldn’t Have SMILE Surgery?

There are some individuals who should avoid the SMILE surgery procedure. 

Those with thin corneas or existing corneal conditions like keratoconus may not be suitable candidates. Patients with frequent changes in their eye prescription should also consider waiting until their vision stabilises.

Individuals who have had previous eye surgeries or those with significant eye diseases, such as glaucoma or cataracts, may be advised against SMILE. 

Pregnant or breastfeeding women should also postpone the procedure, as hormonal changes can affect vision.

It’s crucial to have an open discussion with your eye care specialist to understand whether you meet the criteria for SMILE surgery. This conversation will ensure that you choose the safest and most effective option for your vision needs.

Side Effects of SMILE Eye Surgery

As with any medical procedure, SMILE eye surgery comes with potential side effects. While the procedure is generally safe, some patients may experience mild discomfort, tearing, or redness in the days following the surgery. In rare cases, complications like slight overcorrection/undercorrection may occur.

Some patients report seeing halos or glare around lights, especially at night. While these effects usually diminish as the eyes heal, it’s essential to monitor any unusual symptoms.

If you experience severe pain, sudden vision changes, or signs of infection such as swelling and discharge, it is crucial to contact your eye specialist promptly. 

At Nethradhama Super Specialty Eye Hospital, we prioritise patient safety and provide thorough post-operative care to ensure the best possible outcomes.

Conclusion

SMILE eye surgery is a remarkable advancement in vision correction, providing a safe and effective alternative to traditional methods. Its minimally invasive nature, quick recovery, and reduced risk of complications make it an attractive option for those looking to improve their vision.

With a high success rate and the potential for significant visual improvement, many patients have found new freedom from glasses and contact lenses through this innovative procedure. However, it’s essential to consult with an experienced eye specialist to determine if SMILE is the right fit for you.

At Nethradhama Super Specialty Eye Hospital, our team is dedicated to helping you achieve your vision goals with personalised care and support. If you’re considering SMILE surgery, reach out to us for a consultation and take the first step toward clearer vision.