Small Incision Lenticule Extraction (SMILE) – A Minimally Invasive Laser Eye Procedure

Small Incision Lenticule Extraction (SMILE) is a cutting-edge refractive eye surgery that has emerged as an alternative to LASIK and PRK for the correction of vision issues such as myopia (nearsightedness) and astigmatism. Unlike traditional LASIK, SMILE involves creating a small incision in the cornea to remove a lenticule of tissue, thereby reshaping the cornea and improving vision.

How SMILE Works
SMILE is performed using a femtosecond laser that creates a small disc-shaped piece of tissue (lenticule) within the cornea. This lenticule is then extracted through a small incision—typically 2-4 mm—without creating a full corneal flap, as in LASIK. The removal of this lenticule changes the shape of the cornea, allowing light to focus more precisely on the retina.

Benefits of SMILE Over Traditional LASIK
Minimally invasive – no flap creation reduces risk of complications like flap dislocation.
Faster recovery – smaller incision leads to less disruption of corneal nerves and fewer dry eye symptoms.
Suitable for active lifestyles – lower risk of flap-related injuries.
Effective for moderate to high myopia – many patients achieve 20/20 vision or better.

Who is a Candidate for SMILE?
Ideal candidates typically have:

• Stable vision for at least 1 year
  
  
• Moderate to high myopia (up to -10 diopters)
  
  
• Astigmatism up to 3 diopters
  
  
• Healthy corneas and no history of eye disease
  
  

A thorough eye examination by a qualified ophthalmologist is necessary to determine if SMILE is the best choice.

Potential Risks and Considerations
As with any surgical procedure, SMILE does carry risks:
Dry eye symptoms – though usually less severe than with LASIK
Temporary visual disturbances – such as glare or halos, especially in low light
Incomplete lenticule removal – rare but possible, may require enhancement procedures

Recovery and Post-Operative Care
SMILE patients typically experience rapid visual recovery, with most returning to normal activities within a few days. It’s important to:

• Avoid rubbing the eyes during the healing period
  
  
• Follow prescribed eye drop regimen to reduce inflammation and risk of infection
  
  
• Attend follow-up appointments to monitor healing progress
  
  

Conclusion
Small Incision Lenticule Extraction (SMILE) is a highly effective, minimally invasive laser eye surgery option for individuals seeking vision correction without the traditional flap-based approach of LASIK. Consulting with an experienced refractive surgeon is essential to determine the most suitable option for achieving long-term visual clarity.