Visual and Refractive Outcomes of Femtosecond Lenticule Extraction and Small-Incision Lenticule Extraction for Myopia

Kamiya, Kazutaka; Shimizu, Kimiya; Igarashi, Akihito; Kobashi, Hidenaga

doi:10.1016/j.ajo.2013.08.011

Cited by 128 publications

(89 citation statements)

References 11 publications

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“…Because of the limited literature on the small-incision lenticule extraction and femtosecond lenticule extraction techniques, all relevant articles were included in the review. Figures 1 to 3 were developed from summation and percentage data in several articles on small-incision lenticule extraction 2,[11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] and LASIK [26][27][28][29][30][31][32] ; attempts were made to ensure uniformity in the preoperative refractive parameters and other potentially confounding variables. The significant disproportion of available published literature on each technique resulted in a significantly larger portion of LASIK patients (n Z 36 822) than small-incision lenticule extraction patients (n Z 1759).…”

Section: Methodsmentioning

confidence: 99%

“…Information was extracted from several studies. 2,11,12,14,[16][17][18][19][20][21]23 Sample sizes for each time period are as follows: 1 month, n Z 162; 3 months, n Z 958; 6 months, n Z 217; 1 year, n Z 73 (CDVA Z corrected distance visual acuity). a combination of keratectomy with subsequent excimer laser ablation was successfully performed, further refining the keratomileusis procedure.…”

Section: Historical Synopsismentioning

confidence: 99%

See 1 more Smart Citation

Small-incision lenticule extraction

Moshirfar¹,

McCaughey²,

Reinstein³

et al. 2015

Journal of Cataract and Refractive Surgery

171

103

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Section: Methodsmentioning

confidence: 99%

Section: Historical Synopsismentioning

confidence: 99%

Small-incision lenticule extraction

Moshirfar¹,

McCaughey²,

Reinstein³

et al. 2015

Journal of Cataract and Refractive Surgery

171

103

View full text Add to dashboard Cite

show abstract

“…Small-incision lenticule extraction technology has shown excellent efficacy, safety, stability, and predictability in the correction of myopia and myopic astigmatism. [6][7][8][9] Being flapfree, this approach might reduce some flap-related side effects of LASIK, such as flap dislocation, uneven flap edges, corneal ectasia, and flap-induced astigmatism. Small-incision lenticule extraction also differs from LASEK or PRK in that no epithelial scraping is needed.…”

mentioning

confidence: 98%

Influence of intraocular astigmatism on the correction of myopic astigmatism by femtosecond laser small-incision lenticule extraction

Qian

Huang

Chu

et al. 2015

Journal of Cataract and Refractive Surgery

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“…The procedures were similar in terms of safety, efficacy, predictability and stability, suggesting that the presence or absence of lifting the flap does not significantly affect these visual and refractive outcomes. 17 Interestingly, the refractive predictability after SMILE has been found to be unrelated to the degree of the attempted myopic correction. 6 This is in contrast to excimer-based treatments, which show decreasing precision with increasing myopic correction.…”

Section: Refractive Outcomementioning

confidence: 99%

New Developments in the Lenticule Extraction Procedure

Hjortdal¹,

Ivarsen²

2014

European Ophthalmic Review

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31Over the last few years, surgical extraction of a refractive lenticule, or ReLEx ® , has evolved as a new treatment in the field of keratorefractive surgery. Currently, the VisuMax ® femtosecond (FS) laser (Carl Zeiss Meditec, Jena, Germany) is the only platform to offer this treatment.The 500 kHz VisuMax laser generates very fast pulses (10 -15 s range) in the near-infrared spectrum. Depending on the specific laser settings, each pulse conveys approximately 150 nJ, which causes localised photodisruption at the focal point. The generated plasma expands, creating a cavitation bubble, and, as individual cavitation bubbles fuse, the stroma is cut with a minimum of collateral damage. The VisuMax FS laser uses a high numerical aperture and a concave contact glass to focus the laser pulses with very high precision. Thus, laser spots of approximately 1 μm diameter are placed with a defined distance of 2-5 μm in a spiral pattern. To ensure centration on the visual axis, the patient fixates on a blinking light and suction is applied at the limbus to maintain stability of the eye. Initially, the posterior refractive surface of the lenticule is cut, followed by creation of the plano anterior surface, which is slightly enlarged in diameter to facilitate surgical manipulation.This review article reviews the current state of the technique, updated clinical results, 1 experimental studies and, finally, presents some of the challenges that need to be addressed by new technologies.Depending on the method used to access the lenticule, ReLEx can be split into FLEx, in which a laser-assisted in situ keratomileusis ( In contrast to LASIK, ReLEx is a one-laser approach, where the critical laser treatment is performed on the intact cornea rather than on exposed corneal stroma. Consequently, the potential variability associated with the excimer laser photoablation is avoided.In addition, the minimally invasive SMILE treatment has several theoretical advantages over flap-based treatments, including little trauma to the corneal surface, less corneal denervation and better biomechanical strength due to an almost intact anterior stroma. Since AbstractFor the last 20 years controlled excimer laser ablation of corneal tissue, either directly from the corneal stromal surface or from the corneal interior after creation of a superficial corneal flap, has become widely used to correct myopia, hyperopia and astigmatism.Recently, an intrastromal refractive procedure whereby a tissue lenticule is cut free in the corneal stroma by a femtosecond laser and removed through a small peripheral incision has been introduced. The procedure avoids creation of a corneal flap and the potential associated risks while avoiding the slow visual recovery of surface ablation procedures. The all-femtosecond-based flap-free intracorneal refractive procedure has been documented to be a predictable, efficient and safe procedure for correction of myopia and astigmatism. Technological developments related to further improved cutting quality, hyperopic and individualise...

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Visual and Refractive Outcomes of Femtosecond Lenticule Extraction and Small-Incision Lenticule Extraction for Myopia

Cited by 128 publications

References 11 publications

Small-incision lenticule extraction

Small-incision lenticule extraction

Influence of intraocular astigmatism on the correction of myopic astigmatism by femtosecond laser small-incision lenticule extraction

New Developments in the Lenticule Extraction Procedure

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