June 2013
Volume 54, Issue 15
Free
ARVO Annual Meeting Abstract  |   June 2013
Small Incision Lenticule Extraction (SMILE) procedure for the correction of myopia and myopic astigmatism: What we have learned after 120 eyes in 1 year
Author Affiliations & Notes
  • Arturo Ramirez-Miranda
    Cornea and Refractive Surgery, Instituto de Oftalmologia "Conde de Valenciana", Mexico City, Mexico
  • Alejandro Navas
    Cornea and Refractive Surgery, Instituto de Oftalmologia "Conde de Valenciana", Mexico City, Mexico
  • Angie De La Mota
    Cornea and Refractive Surgery, Instituto de Oftalmologia "Conde de Valenciana", Mexico City, Mexico
  • Tito Ramirez-Luquín
    Cornea and Refractive Surgery, Instituto de Oftalmologia "Conde de Valenciana", Mexico City, Mexico
  • Enrique Graue-Hernández
    Cornea and Refractive Surgery, Instituto de Oftalmologia "Conde de Valenciana", Mexico City, Mexico
  • Footnotes
    Commercial Relationships Arturo Ramirez-Miranda, Carl Zeiss Meditec (R); Alejandro Navas, None; Angie De La Mota, None; Tito Ramirez-Luquín, None; Enrique Graue-Hernández, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science June 2013, Vol.54, 3712. doi:
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      Arturo Ramirez-Miranda, Alejandro Navas, Angie De La Mota, Tito Ramirez-Luquín, Enrique Graue-Hernández; Small Incision Lenticule Extraction (SMILE) procedure for the correction of myopia and myopic astigmatism: What we have learned after 120 eyes in 1 year. Invest. Ophthalmol. Vis. Sci. 2013;54(15):3712.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose: To report the Visual, Refractive and clinical outcomes, stability and complications rate of 20 eyes treated with Femtosecond-only small incision lenticule extraction to correct myopic refractive errors

Methods: A refractive lenticule of intrastromal corneal tissue was cut utilising the VisuMax femtosecond laser system. Simultaneously an small ‘pocket’ incisión was created. Thereafter, the lenticule was manually dissected with a Shanzu dissector and removed from the stroma through a 3.0 to 5.2 mm incision using 0.12 forceps. Outcome measures were corrected distance visual acuity (CDVA), uncorrected distance visual acuity (UDVA), and manifest refraction during 1 year of follow-up and the complication rate . Corneal Tomography/OCT, corneal sensation and contrast sensitivity was also measured

Results: The study enrolled 120 eyes of 76 patients. Preoperative mean spherical equivalent was - 5.37 diopters (D) 3.27 standard deviation (SD) preoperatively and spherical equivalent +0.17 (D) 0.45 (SD) 6 months postoperatively. Refractive stability was achieved within 6 weeks. A year after the surgery, > 87% of all cases had a UDVA of 20/25 or better. The 1 year postoperative CDVA was the same as or better than the preoperative CDVA in all the eyes. Less than 5% of the eyes lost lines of CDVA. The complications rate was low (n=8).

Conclusions: Small Incision Lenticule Extraction (SMILE), a femto-only flapless minimally invasive technique, appears to be safe, predictable, and effective procedure to treat myopia and myopic astigmatism , with a short learning curve.

Keywords: 578 laser • 479 cornea: clinical science • 605 myopia  
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