SMILE (Small Incision Lenticule Extraction) LASIK offers several advantages over traditional LASIK and LASEK (Laser-Assisted Sub-Epithelial Keratectomy) procedures. Here are some of the key benefits of SMILE compared to LASIK and LASEK:
Minimally Invasive: SMILE is a flapless procedure, which means that it does not require the creation of a corneal flap like traditional LASIK. In LASIK, a microkeratome or femtosecond laser is used to create a thin flap on the cornea, which is lifted to perform the laser ablation and then repositioned. In SMILE, a small incision is made to access and remove the lenticule, without creating a flap. This makes SMILE a less invasive procedure and reduces the risk of certain flap-related complications that may occur with LASIK.
Less Disruption of Corneal Nerves: During LASIK, creating a corneal flap can lead to some disruption of corneal nerves, which may contribute to temporary dry eye and affect corneal sensitivity. In SMILE, the procedure involves a smaller incision, which preserves more corneal nerves and may result in reduced post-operative dry eye symptoms compared to LASIK.
Preserves More Corneal Strength: SMILE requires the removal of less corneal tissue compared to LASIK. This means that SMILE may be a preferred option for patients with thinner corneas, as it leaves more of the cornea intact and preserves corneal strength.
Stability of Vision Correction: Studies have shown that SMILE can lead to stable and predictable vision correction outcomes over time. Patients usually experience excellent visual results that remain consistent and stable in the long term.
Reduced Risk of Corneal Ectasia: Corneal ectasia is a rare but severe complication that can occur after refractive surgery, characterized by a progressive thinning and bulging of the cornea. Some studies suggest that SMILE may carry a lower risk of corneal ectasia compared to LASIK, especially in patients with higher degrees of myopia.
Faster Recovery: SMILE typically involves a quicker visual recovery compared to LASIK. Most patients experience improved vision within a few days after the procedure, and the visual outcomes stabilize rapidly in the following weeks.
It’s important to note that the suitability of a specific procedure (LASIK, LASEK, or SMILE) depends on various factors, including the patient’s eye health, refractive error, corneal thickness, and surgeon’s recommendation. Each procedure has its benefits and potential risks, and the choice should be made after a comprehensive evaluation by an experienced eye surgeon.
LASIK and LASEK have been performed for many years and have demonstrated proven safety and efficacy. SMILE is a newer procedure that continues to gain popularity due to its unique advantages. Therefore, consulting with an eye care professional to discuss your individual needs and candidacy for refractive surgery is essential in determining the most suitable option for your vision correction.
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