Four-year observation of predictability and stability of small incision lenticule extraction

Han, Tian; Zheng, Ke; Chen, Yingjun; Gao, Yang; He, Ling‐Yun; Zhou, Xingtao

doi:10.1186/s12886-016-0331-0

Cited by 72 publications

(49 citation statements)

References 26 publications

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“…During a 4-year follow-up period, Burazovitch et al [12] found that 87% of eyes were within ±0.50 D of the intended correction in patients with high myopia. Moreover, in the study by Han et al [11], 89% of eyes were within ±0.50 D of the intended correction and 100% were within ±1.00 D. Similarly, Li et al [15] reported that 90% and 100% of eyes were within ±0.5 D and ±1.00 D of the intended correction, respectively, at 5 years after SMILE. Our findings were similar with the abovementioned studies.…”

Section: Discussionmentioning

confidence: 88%

“…SMILE showed excellent safety and efficacy for moderate-to-high myopia correction. Han et al [11] demonstrated that the UDVA was 20/20 or better in 92% of eyes at 4 years after SMILE, and the efficacy and safety indices were 1.07 ± 0.16 and 1.16 ± 0.14. Blum et al [10] reported the data from 56 eyes after SMILE during a 5-year follow-up period.…”

Section: Discussionmentioning

confidence: 99%

“…Sekundo et al [1] first introduced this new procedure in 2011. e first clinical study [2] of femtosecond lenticule extraction in China was also reported in 2011. Numerous clinical studies [3][4][5][6][7][8][9] suggested that SMILE is a safe and effective procedure for myopia correction, and the follow-up periods in these studies mostly spanned from 3 months to 3 years, but rarely up until 4 years [10][11][12][13][14]. In 2019, we [15] have previously compared the 5-year outcomes of SMILE and femtosecond laser-assisted LASIK (FS-LASIK) in patients with myopia.…”

Section: Introductionmentioning

confidence: 99%

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Small Incision Lenticule Extraction (SMILE) for Moderate and High Myopia: Seven-Year Outcomes of Refraction, Corneal Tomography, and Wavefront Aberrations

Xia

Shen

Han

et al. 2020

Journal of Ophthalmology

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Purpose. To investigate the long-term outcomes of refraction, corneal tomography, and wavefront aberrations after small incision lenticule extraction (SMILE) for moderate and high myopia. Methods. Prospective, nonconsecutive case series. A total of 26 patients (26 eyes) who underwent SMILE from May 2010 to March 2013 at the Fudan University Eye and ENT Hospital (Shanghai, China) were enrolled. The periods of follow-up were 1 month, 1 year, 5 years, and 7 years after surgery. The routine eye examinations included uncorrected distance visual acuity (UDVA) and corrected distance visual acuity (CDVA), manifest refraction, and corneal tomography. Results. All surgeries were executed without any complications. At the final visit, an UDVA of 20/20 or better was achieved in 26 eyes (100%) and 11 eyes (42%) exhibited no change in CDVA. 9 eyes (35%) gained one line, 6 eyes (23%) gained two lines, and no eyes lost CDVA. 24 eyes (92%) and 26 eyes (100%) were within ±0.5 D and ±1.00 D of the target refraction, respectively. A mean refractive regression of −0.17 D was observed between 1 month and 7 years postoperatively. Mean corneal front curvature (MCFC) was significantly decreased between pre- and post-SMILE surgery (P<0.0001). Higher-order aberrations (HOAs) and vertical coma were significantly increased after SMILE compared to those measured before surgery (all P<0.001). There were no significant differences in trefoil and spherical aberration between pre- and post-SMILE surgery (all P>0.05). Conclusion. SMILE is an effective, safe, and stable procedure for moderate and high myopia, with relatively constant corneal stability and wavefront aberrations. This trial is registered with ChiCTR-ONRC-13003114.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Small Incision Lenticule Extraction (SMILE) for Moderate and High Myopia: Seven-Year Outcomes of Refraction, Corneal Tomography, and Wavefront Aberrations

Xia

Shen

Han

et al. 2020

Journal of Ophthalmology

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“…Han et al. () found that no eye lost any Snellen lines, and 9% of eyes showed an increase of two lines at 4 years after SMILE with a safety index of 1.16 ± 0.14. Our study likewise showed that no eyes lost two or more lines of CDVA, further demonstrating that the long‐term safety of SMILE is favourable and that both SMILE and FS‐LASIK are very safe.…”

Section: Discussionmentioning

confidence: 99%

Five‐year results of small incision lenticule extraction (SMILE) and femtosecond laser LASIK (FS‐LASIK) for myopia

Chen

et al. 2019

Acta Ophthalmologica

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Purpose: To compare visual outcomes and aberration outcomes in small incision lenticule extraction (SMILE) versus femtosecond laser LASIK (FS-LASIK). Methods: This prospective, comparative, nonrandomized clinical study included 68 eyes of 37 patients receiving SMILE and 55 eyes of 30 patients receiving FS-LASIK between December 2011 and January 2013 at the Fudan University Eye and ENT Hospital (Shanghai, People's Republic of China). Patients were followed up at 3, 6 months and 5 years after surgery. Main outcome measurements included uncorrected (UDVA) and corrected (CDVA) distance visual acuity, manifest refraction, central corneal thickness (CCT), total corneal refractive power (TCRP) and wavefront aberrations. Results: About 98% (49/50) of treated eyes in the SMILE group and 95% (39/41) in the FS-LASIK group had a postoperative logMAR UDVA of 0 or better. Spherical equivalent (SE) after 5 years was À0.01 AE 0.35 D in the SMILE group and À0.23 AE 0.41 D in the FS-LASIK group. A regression of À0.02 AE 0.39 D in the SMILE group and À0.12 AE 0.32 D in the FS-LASIK group was observed between 6 months and 5 years postoperative time-points. TCRP increased by 0.39 AE 0.38 D in the SMILE group and 0.45 AE 0.49 D in the FS-LASIK group between 6-month and 5-year time-points. However, no statistically significant difference was found between the SMILE and FS-LASIK groups in terms of ΔSE, ΔCCT and ΔTCRP between 6 months and 5 years postoperative time-points. Conclusion: Myopic regression was observed in terms of TCRP but not in subjective refraction. No statistically significant difference in stability was found between SMILE and FS-LASIK.

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“…Yusuf Yildirim et al [25] reported that 92% of high myopic eyes were within ± 0.50 D and that 100% of eyes were still within ± 1.00 D at the 2-year follow-up. Tian Han [26] reported that 89%…”

Section: Quality Of Life Evaluationmentioning

confidence: 99%

Five-years Results of Small-incision Lenticule Extraction in High Myopia

Lang

Cao

Liu

et al. 2020

Preprint

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KEYWORDSSmall incision lenticule extraction (SMILE), high myopia, long-term follow-up 2 Abstract Background To investigate long-term refractive visual quality outcomes and vision-related quality of life after small-incision lenticule extraction (SMILE) in the treatment of high myopia.Methods Thirty patients (60 eyes) with high myopia who underwent SMILE more than 5 years previously were selected as the SMILE group. Another 30 high myopia patients (60 eyes) who had worn corrective spectacles for more than 5 years were selected as the control group. In the SMILE group, the postoperative follow-up times were 3 months, 6 months, 1 year and 5 years. The uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), spherical equivalent (SE), and ocular axial length (AL) were analysed. The Chinese version of the National Eye Institute Visual Function Questionnaire-25 (CHI-NEI-VFQ-25) was used to evaluate the vision-related quality of life in the SMILE group and the control group. ResultsIn the SMILE group, the mean preoperative SE was -7.29±0.87 D (range -6.00 to -9.125 D).The efficacy index and safety index of SMILE were 1.09±0.18 and 1.19±0.12, respectively. Five years postoperatively, 44 eyes (73%) obtained a visual acuity of 20/20 or better. There were no eyes with CDVA loss of one or more Snellen lines. Forty-nine eyes (82%) and 57 eyes (95%) were within ±0.50 D and ±1.00 D of attempted correction, respectively. Forty-eight eyes (80%) had astigmatism < 0.50 D. The postoperative mean SE values at 3 months, 6 months, 1 year, and 5 years were 0.11±0.44 D, 0.07±0.45 D, -0.02±0.41 D, and -0.15±0.46 D, respectively. No significant change was observed in the ocular axial length from before operation to 5 years postoperatively (26.08±0.96 mm vs 26.01±0.94 mm, p>0.05). Compared to the control group, the SMILE group showed a significantly higher total score on the CHI-NEI-VFQ-25 (90.14 vs 81.43, p < 0.001). ConclusionsIn the present study, in a long-term follow-up, we demonstrated that correcting high myopia with SMILE is safe, effective, and predictable. In addition, there is slight undercorrection. BackgroundRecently, femtosecond lasers have been widely used in ophthalmology, such as in anterior capsulotomy with femtosecond lasers in cataract surgery, femtosecond laser-assisted keratoplasty, flap construction with femtosecond lasers in FS-LASIK and lens creation in the corneal stroma with

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Four-year observation of predictability and stability of small incision lenticule extraction

Cited by 72 publications

References 26 publications

Small Incision Lenticule Extraction (SMILE) for Moderate and High Myopia: Seven-Year Outcomes of Refraction, Corneal Tomography, and Wavefront Aberrations

Small Incision Lenticule Extraction (SMILE) for Moderate and High Myopia: Seven-Year Outcomes of Refraction, Corneal Tomography, and Wavefront Aberrations

Five‐year results of small incision lenticule extraction (SMILE) and femtosecond laser LASIK (FS‐LASIK) for myopia

Five-years Results of Small-incision Lenticule Extraction in High Myopia

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