History and Results; Indications and Contraindications of SMILE Compared With LASIK

Rupal Shah, Rupal Shah

Abstract

Small incision lenticule extraction (SMILE) is a new paradigm for refractive surgery, and was first performed by Sekundo and Blum in 2008. It uses only a femtosecond laser to carve out a lenticule within the corneal stroma, and then achieves refractive correction by extracting the lenticule through a small incision. A number of studies have shown that SMILE leads to stable and efficacious outcomes, combined with high safety. Long-term studies also indicate that SMILE has excellent outcomes combined with high safety. Although relatively safe, SMILE can have some intraoperative and postoperative complications, including suction loss during the procedure, lenticule tears, incision tears, epithelial ingrowth, diffuse lamellar keratitis, and residual refractive error. Studies indicate that SMILE leads to less postoperative dry eyes. It is thus preferred over laser-assisted in-situ keratomileusis (LASIK) in cases wherein there is mild dry eye preoperatively. It is also preferred over LASIK in cases wherein the patient is likely to engage in contact sports. LASIK may be preferred over SMILE for the treatment of hyperopia, and in cases of significant higher order wavefront aberrations or topographic irregularities.

Conflict of interest statement

The authors have no conflicts of interest.

References

    1. Ibrahim O, Waring GO, III, Salah T, et al. Automated in situ keratomileusis for myopia. J Refract Surg 1995; 11:431–441.
    1. Haimovici R, Culbertson W. Optical lamellar keratoplasty using the barraquer microkeratome. J Refract Surg 1991; 7:42–45.
    1. Barraquer JI. The history and evolution of keratomileusis. Int Ophthalmol Clin 1996; 36:1–7.
    1. Slade SG, Updegraff SA. Complications of automated lamellar keratectomy [letter]. Arch Ophthalmol 1995; 113:1092.
    1. Trokel SL, Srinivasan R, Braren B. Excimer laser surgery of the cornea. Am J Ophthalmol 1983; 96:710–715.
    1. McDonald MB, Kaufman HE, Frantz JM, et al. Excimer laser ablation in a human eye: case report. Arch Ophthalmol 1989; 107:641–642.
    1. Munnerlyn CR, Koons SJ, Marshall J. Photorefractive keratectomy: a technique for laser refractive surgery. J Cataract Refract Surg 1988; 14:46–52.
    1. Leaming D. Practice styles and preferences of ASCRS members—1996 survey. J Cataract Refract Surg 1997; 23:527–535.
    1. Lipshitz I, Loewenstein A, Varssano D, Lazar M. Late onset corneal haze after photorefractive keratectomy for moderate and high myopia. Ophthalmology 1997; 104:369–373.
    1. Buratto L, Ferrari M, Rama P. Excimer laser intrastromal keratomileusis. Am J Ophthalmol 1992; 113:291–295.
    1. Pallikaris IG, Papatzanaki ME, Siganos DS, et al. A corneal flap technique for laser in situ keratomileusis: human studies. Arch Ophthalmol 1991; 109:1699–1702.
    1. Tham VM, Maloney RK. Microkeratome complications of laser in situ keratomileusis. Ophthalmology 2000; 107:920–924.
    1. Kurtz RM, Horvath C, Liu HH, Krueger RR, Juhasz T. Lamellar refractive surgery with scanned intrastromal picosecond and femtosecond laser pulses in animal eyes. J Refract Surg 1998; 14:541–548.
    1. Ratkay-Traub I, Ferincz IE, Juhasz T, Kurtz RM, Krueger RR. First clinical results with the femtosecond neodynium-glass laser in refractive surgery. J Refract Surg 2003; 19:94–103.
    1. Reinstein DZ, Archer TJ, Gobbe M, Johnson N. Accuracy and reproducibility of artemis central flap thickness and visual outcomes of LASIK with the Carl Zeiss Meditec VisuMax Femtosecond Laser and MEL 80 Excimer Laser Platforms. J Refract Surg 2010; 26:107–119.
    1. Yildirim R, Aras C, Ozdamar A, et al. Reproducibility of corneal flap thickness in laser in situ keratomileusis using the Hansatome microkeratome. J Cataract Refract Surg 2000; 26:1729–1732.
    1. Sekundo W, Kunert K, Russman C, et al. First efficacy and safety study of femtosecond lenticule extraction for the correction of myopia: six month results. J Cataract Refract Surg 2008; 34:1513–1520.
    1. Sekundo W, Kunert KS, Blum M. Small incision corneal refractive surgery using the small incision lenticule extraction (SMILE) procedure for the correction of myopia and myopic astigmatism: results of a 6 month prospective study. Br J Ophthalmol 2011; 95:335–339.
    1. Shah R, Shah S, Sengupta S. Results of small incision lenticule extraction: all-in-one femtosecond laser refractive surgery. J Cataract Refract Surg 2011; 37:127–137.
    1. Shah R, Shah S. Effect of scanning patterns on the results of femtosecond laser lenticule extraction refractive surgery. J Cataract Refract Surg 2011; 37:1636–1647.
    1. Meyer B, Wiltfang R. Management of Laser Settings for Better SMILE Surgery. Small Incision Lenticule Extraction (SMILE) (Ed. Walter Sekundo): 107–112.
    1. Sekundo W, Gertnere J, Bertelmann T, Solomatin I. One-year refractive results, contrast sensitivity, high-order aberrations and complications after myopic small-incision lenticule extraction (ReLEx SMILE). Graefes Arch Clin Exp Ophthalmol 2014.
    1. Hjortdal JO, Vestergaard AH, Ivarsen A, Ragunathan S, Asp S. Predictors for the outcome of small-incision lenticule extraction for myopia. J Refract Surg 2012; 28:865–871.
    1. Kamiya K, Shimizu K, Igarashi A, Kobashi H. Visual and refractive outcomes of femtosecond lenticule extraction and small-incision lenticule extraction for myopia. Am J Ophthalmol 2014; 157:128–134.
    1. Ağca A, Demirok A, Cankaya Kİ, et al. Comparison of visual acuity and higher-order aberrations after femtosecond lenticule extraction and small-incision lenticule extraction. Cont Lens Anterior Eye 2014; 37:292–296.
    1. Ganesh S, Gupta R. Comparison of visual and refractive outcomes following femtosecond laser-assisted LASIK with smile in patients with myopia or myopic astigmatism. J Refract Surg 2014; 30:590–596.
    1. Kim JR, Kim BK, Mun SJ, Chung YT, Kim HS. One-year outcomes of small-incision lenticule extraction (SMILE): mild to moderate myopia vs. high myopia. BMC Ophthalmol 2015; 15:59.
    1. Chansue E, Tanehsakdi M, Swasdibutra S, McAlinden C. Efficacy, predictability and safety of small incision lenticule extraction (SMILE). Eye Vis (Lond) 2015; 2:14.
    1. Zhang J, Wang Y, Wu W, Xu L, Li X, Dou R. Vector analysis of low to moderate astigmatism with small incision lenticule extraction (SMILE): results of a 1-year follow-up. BMC Ophthalmol 2015; 15:8.
    1. Hansen RS, Lyhne N, Grauslund J, Vestergaard A. Small-incision lenticule extraction (SMILE): outcomes of 722 eyes treated for myopia and myopic astigmatism. Graefes Arch Clin Exp Ophthalmol 2016; 254:399–405.
    1. Messerschmidt-Roth A, Sekundo W, Lazaridis A, Schulze S. Three years follow-up study after refractive small incision lenticule extraction (SMILE) using 500kHz femtosecond laser in “fast mode”. Klin Monbl Augenheilkd 2017; 234:102–108.
    1. Ağca A, Tülü B, Yaşa D, Yildirim Y, Yildiz BK, Demirok A. Long-term (5 years) follow-up of small-incision lenticule extraction in mild-to-moderate myopia. J Cataract Refract Surg 2019; 45:421–426.
    1. Zhang Y, Shen Q, Jia Y, Zhou D, Zhou J. Clinical outcomes of SMILE and FS-LASIK used to treat myopia: a meta-analysis. J Refract Surg 2016; 32:256–265.
    1. Kanellopoulos AJ. Topography-guided LASIK versus small incision lenticule extraction (SMILE) for myopia and myopic astigmatism: a randomized, prospective, contralateral eye study. J Refract Surg 2017; 33:306–312.
    1. Lin F, Xu Y, Yang Y. Comparison of the visual results after SMILE and femtosecond laser-assisted LASIK for myopia. J Refract Surg 2014; 30:248–254.
    1. Ivarsen A, Asp S, Hjordtal J. Safety and complications of more than 1500 small-incision lenticule extraction procedures. Ophthalmology 2014; 121:822–828.
    1. Mattila JS, Holopainen JM. Bilateral ectasia after femtosecond laser-assisted small incision lenticule extraction (SMILE). J Refract Surg 2016; 32:497–500.
    1. El-Naggar MT. Bilateral ectasia after femtosecond laser–assisted small-incision lenticule extraction. J Cataract Refract Surg 2015; 41:884–888.
    1. Sachdev G, Sachdev MS, Sachdev R, Gupta H. Unilateral corneal ectasia following small-incision lenticule extraction. J Cataract Refract Surg 2015; 41:2014–2018.
    1. Wang Y, Cui C, Li Z, et al. Corneal ectasia 6.5 months after small-incision lenticule extraction. J Cataract Refract Surg 2015; 41:1100–1106.
    1. Mohamed-Noriega K, Riau A, Lwin N, Chaurasia S, Tan D, Mehta J. Early corneal nerve damage and recovery following small incision lenticule extraction (SMILE) and laser in situ keratomileusis (LASIK). Invest Ophthalmol Vis Sci 2014; 55:1823–1834.
    1. Ganesh S, Gupta R. Comparison of visual and refractive outcomes following femtosecond laser-assisted LASIK with smile in patients with myopia or myopic astigmatism. J Cataract Refract Surg 2014; 30:590–596.
    1. Li M, Niu L, Qin B, Zhou Z, Ni K, Le Q, Xiang J, Wei A, Ma W, Zhou X. Confocal comparison of corneal reinnervation after small incision lenticule extraction (SMILE) and femtosecond laser in situ keratomileusis (FS-LASIK). PLoS One 2013; 8:e81435.
    1. Reinstein DZ, Archer TJ, Gobbe M, Bartoli E. Corneal sensitivity after small incision lenticule extraction (SMILE). J Refract Surg 2015; 41:1580–1587.

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