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Related Experiment Video

Updated: Nov 29, 2025

Ye's Swing Technique for Small-incision Lenticule Extraction Surgery
04:15

Ye's Swing Technique for Small-incision Lenticule Extraction Surgery

Published on: June 27, 2025

242

[SMILE - Small Incision Lenticule Extraction].

Gernot Steinwender, Mehdi Shajari, Wolfgang J Mayer

    Klinische Monatsblatter Fur Augenheilkunde
    |November 18, 2020
    PubMed
    Summary
    This summary is machine-generated.

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    Small Incision Lenticule Extraction (SMILE) offers a flap-less laser vision correction alternative to LASIK, with similar outcomes but fewer side effects like dry eye. However, SMILE presents a steeper learning curve and limitations in current technology.

    Area of Science:

    • Ophthalmology
    • Laser Surgery
    • Corneal Refractive Surgery

    Background:

    • Refractive lenticule extraction is a corneal surgical technique utilizing a femtosecond laser to create an intrastromal refractive lenticule for myopia and myopic astigmatism correction.
    • Small Incision Lenticule Extraction (SMILE) involves extracting this lenticule through a small incision, offering a flap-less alternative to traditional laser procedures.
    • SMILE demonstrates efficacy, predictability, and safety comparable to femtosecond laser in situ keratomileusis (LASIK).

    Purpose of the Study:

    • To review the patient selection, surgical technique, potential complications, retreatment strategies, and postoperative outcomes associated with the SMILE procedure.
    • To compare the advantages and disadvantages of SMILE versus LASIK, focusing on aspects like iatrogenic dry eye, higher-order aberrations, and corneal biomechanics.
    • To highlight the technical challenges and current technological limitations of the SMILE procedure, including the surgeon learning curve and lack of cyclotorsion control.

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    Establishment of a Severe Dry Eye Model Using Complete Dacryoadenectomy in Rabbits
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    Main Methods:

    • This review synthesizes current literature on the SMILE procedure.
    • It examines patient selection criteria for refractive lenticule extraction.
    • The review analyzes surgical methodology, complication profiles, retreatment options, and patient outcomes post-SMILE.

    Main Results:

    • SMILE shows comparable efficacy, predictability, and safety to LASIK for myopia and myopic astigmatism correction.
    • Advantages of SMILE include reduced iatrogenic dry eye, fewer induced higher-order aberrations, and potentially less corneal biomechanical weakening.
    • Disadvantages include a steeper surgeon learning curve, technical challenges, and limitations in cyclotorsion control and retreatment complexity compared to LASIK.

    Conclusions:

    • SMILE is a viable flap-less alternative to LASIK with distinct advantages regarding ocular surface health and optical quality.
    • Surgeons must be aware of the steeper learning curve and current technological limitations of the SMILE platform.
    • Careful patient selection and understanding of potential complications and retreatment options are crucial for successful SMILE outcomes.