What Are LASIK & SMILE Surgeries & How Do They Work?

LASIK & SMILE Surgeries 

Welcome to our comprehensive guide on LASIK & SMILE surgery. In this blog, we delve into the revolutionary advancements in eye care that have transformed the way we correct refractive errors. Discover how these state-of-the-art procedures offer remarkable precision, minimal invasiveness, and rapid recovery times, granting individuals the freedom to experience life with clear and crisp vision.

What Are LASIK & SMILE Surgeries 

What Are LASIK & SMILE Surgeries LASIK and SMILE surgeries are advanced vision correction procedures that aim to improve refractive errors, such as nearsightedness, farsightedness, and astigmatism.

Check the minor difference below:

LASIK: also known as Laser-Assisted In Situ Keratomileusis, involves creating a thin flap on the cornea, allowing the surgeon to reshape the underlying tissue using a precise laser. The flap is then repositioned, promoting natural healing and providing quick visual recovery.

SMILE: the surgery stands for Small Incision Lenticule Extraction, which is a minimally invasive technique that creates a small incision to extract a lenticular, a precise lens-shaped tissue, from within the cornea. This reshapes the cornea, correcting refractive errors while preserving corneal stability.

Both LASIK and SMILE surgeries are known for their precision, quick recovery times, and high success rates. These procedures have transformed the lives of millions by providing clearer vision without the need for glasses or contact lenses.

What Is The Difference Between SMILE and LASIK Surgeries?

What Is The Difference Between SMILE and LASIK Surgeries?Here’s a more detailed elaboration on the differences between SMILE (Small Incision Lenticule Extraction) and LASIK (Laser-Assisted In Situ Keratomileusis) surgeries:

  • Procedure: SMILE surgery involves creating a small incision in the cornea, through which a femtosecond laser is used to create a lenticular (a small, lens-shaped piece of tissue) within the cornea. The lenticular is then removed through the same incision, reshaping the cornea and correcting the refractive error. In LASIK surgery, a corneal flap is created using a femtosecond laser or a microkeratome blade.
  • Corneal Flap: One key difference is the creation and handling of the corneal flap. LASIK requires the creation of a corneal flap, which lifts to access the underlying tissue. In SMILE surgery, no corneal flap is created. The absence of a corneal flap in SMILE surgery can offer potential advantages in terms of corneal biomechanical stability.
  • Laser Usage: In SMILE surgery, the femtosecond laser is primarily used to create the lenticular within the cornea. The same laser then creates a small incision for the removal of the lenticular. In LASIK surgery, an excimer laser is used to reshape the cornea after the corneal flap has been created. The excimer laser precisely removes tissue to correct the refractive error.
  • Incision Size: The incision size in SMILE surgery is typically smaller compared to the corneal flap created in LASIK. The smaller incision in SMILE surgery can result in less disruption to corneal nerves, potentially leading to quicker healing and recovery.
  • Recovery Time: Both SMILE and LASIK surgeries generally offer quick recovery times. However, SMILE surgery often leads to a potentially faster recovery due to the absence of a corneal flap. Patients may experience less dryness and faster visual recovery compared to LASIK.

Is SMILE Less Painful Than LASIK?

Is SMILE Less Painful Than LASIK?Many patients report that SMILE (Small Incision Lenticule Extraction) surgery associates with less discomfort and pain compared to LASIK (Laser-Assisted In Situ Keratomileusis). The smaller incision used in SMILE may result in reduced nerve disruption, leading to a potentially milder sensation during and after the procedure. However, pain perception can vary among individuals, and it’s essential to consult with your eye care professional for a comprehensive understanding.

Does SMILE last forever?

SMILE (Small Incision Lenticule Extraction) surgery aims to provide long-lasting vision correction. The corneal reshaping performed during SMILE is intended to be permanent. However, it’s important to note that the eyes can undergo changes over time due to natural aging processes or other factors. While SMILE has demonstrated excellent stability in clinical studies.

Does LASIK Go Bad In 10 Years?

LASIK (Laser-Assisted In Situ Keratomileusis) generally provides long-lasting vision correction, and many patients maintain good vision for years after the procedure. However, it’s important to note that changes in vision can occur over time due to natural aging processes or other factors. While LASIK outcomes are typically stable, individual experiences may vary. Regular eye exams and follow-up appointments with your eye care professional are important for monitoring any changes and addressing them if needed.

Success Rate Of SMILE/LASIK Surgery?

Success Rate Of SMILE/LASIK Surgery?Both SMILE (Small Incision Lenticule Extraction) and LASIK (Laser-Assisted In Situ Keratomileusis) surgeries have high success rates in terms of vision correction. The success rate of these procedures is generally conveying high enough.

Here are some key points to elaborate on the success rate of these surgeries and the reasons behind it:

Vision correction effectiveness:

  • SMILE: SMILE surgery has shown excellent results in terms of vision correction. Studies have reported high levels of patient satisfaction and visual acuity outcomes. The procedure effectively treats myopia (nearsightedness) and astigmatism.
  • LASIK: LASIK surgery is also highly effective in correcting vision problems such as myopia, hyperopia (farsightedness), and astigmatism. It has a long track record of success, and the majority of patients achieve improved vision after the procedure.

Safety and complications:

  • SMILE: SMILE surgery considers safe, with a low risk of complications. The minimally invasive nature of the procedure, involving a smaller incision and preservation of the corneal surface, contributes to a reduced risk of dry eye and other complications compared to LASIK.
  • LASIK: LASIK surgery is generally safe, with a low risk of complications. However, some potential risks include dry eyes, glare, halos, night vision disturbances, and under-correction or overcorrection of the vision. The prevalence of these complications is relatively low and can manage with proper preoperative evaluation and postoperative care.

Patient satisfaction:

  • SMILE: Patient satisfaction rates with SMILE surgery are generally heightened. The minimally interfering nature, faster recovery time, and reduced risk of dry eye compared to LASIK contribute to positive patient experiences.
  • LASIK: LASIK surgery has an elevated patient satisfaction rate, with the bulk of patients reporting enhanced vision and reduced dependence on corrective eyewear. The quick recovery time and immediate refinement in vision contribute to patient satisfaction.

Candidate selection and surgeon expertise:

  • SMILE/LASIK: The success rate of these surgeries also depends on proper candidate selection and the expertise of the surgeon performing the procedure. A thorough preoperative evaluation, including corneal thickness, refractive stability, and overall eye health, helps ensure optimal results. Choosing an experienced surgeon who specializes in refractive surgery further enhances the success rate.

It’s important to note that the success rate mentioned above is based on general trends and experiences. Every individual’s case is unique, and factors such as pre-existing eye conditions, and medical history. Along with adherence to postoperative care can also impact the overall outcome of SMILE or LASIK surgery. Although consultation with an eye care professional is essential to determine the suitability and potential success of these procedures for an individual.


Both SMILE and LASIK surgeries are effective procedures for vision correction. SMILE offers the advantage of a minimally invasive approach with corneal stability preservation, while LASIK has a long-established track record. The choice between the two depends on individual factors and preferences, such as corneal characteristics and surgeon expertise. Consulting with an experienced eye care professional is crucial to determine the most suitable procedure for optimal vision correction. At the time of obtaining accurate personalized advice based on your specific needs.

Lasik surgery is a safe 10-minute procedure to help you get rid of glasses. EyeMantra offers the most advanced LASIK options including PRK, Femto Lasik, SMILE surgery, Standard LASIK, ICL, and Contoura vision. If you have any questions on Lasik surgery in Delhi, Lasik surgery cost, and Lasik procedure, call us at 9711116605 or email at [email protected].

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