Comparison of refractive outcomes and high-order aberrations after small incision lenticule extraction and wavefront-guided femtosecond-assisted laser in situ keratomileusis for correcting high myopia and myopic astigmatism

Gülmez, Mehmet; Tekçe, Abdülhakim; Kamış, Ümit

doi:10.1007/s10792-020-01534-x

Cited by 18 publications

(22 citation statements)

References 25 publications

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“…Lee et al 55 found larger coma but lesser total HOAs and SAs in the SMILE group at 6 months postoperatively. Coma after SMILE may be related to inaccurate centration, as previously mentioned, 55,62,63,66,69 whereas SAs correlated with the corneal shape and wound healing processes. 55 www.ejcma.org Review Article (2022) 85:2 J Chin Med Assoc…”

Section: Trans-prk Vs Smilementioning

confidence: 67%

“…60 Larger ablation zone and fewer changes in the corneal shape after SMILE might cause fewer SAs than after FS-LASIK. 44,57,62,63 Moreover, FS-LASIK possessed more total HOAs at 3 months 45,59,60 and 1 year postoperatively. 57 Compared with SMILE, FS-LASIK had more wound healing response and inflammatory infiltration, 64 resulting in higher total HOA induction.…”

Section: Lasik Vs Smilementioning

confidence: 97%

“…6 Wavefront-optimized, wavefront-guided, and topographyguided treatments are ablation profiles available for LASIK and Trans-PRK, which could minimize the aberrations due to different principles. 67 Therefore, some articles showed similar, 62,68 or better, 66,69 aberrometric outcomes in wavefront-guided LASIK than in SMILE. When FS-LASIK was equipped with wavefrontguided ablation profiles, SMILE obtained more coma than FS-LASIK at 3-month, 69 6-month, 66 and 5-year 42 follow-up.…”

Section: Lasik Vs Smilementioning

confidence: 99%

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Comparison of clinical outcomes of LASIK, Trans-PRK, and SMILE for correction of myopia

Chang

Lin

Hsu

et al. 2022

Journal of the Chinese Medical Association

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Transepithelial photorefractive keratectomy (Trans-PRK), laser-assisted in situ keratomileusis (LASIK), and small incision lenticule extraction (SMILE) are three mainstay refractive surgeries worldwide. The applicability, efficacy, safety, and predictability of these different techniques are quite similar. Trans-PRK has the strongest biostability, earliest return to normal corneal sensitivity but the longest recovery time, most uncomfortable postoperative experience, and possibility of corneal haze. LASIK possesses the fastest visual rehabilitation but the slowest corneal nerve reinnervation, and flap displacement is possibly lifelong. SMILE incurs no flap-related complications and has intermediate vision recovery time and biomechanics compared with Trans-PRK and LASIK. However, it lacks the cyclotorsion-compensation system, eye-tracking system, and customized treatment profile for high astigmatism or irregular corneal surface. This review aims to introduce the mechanisms, pros, and cons of these three types of refractive surgery. With full understanding, practitioners could advise patients on the most suitable treatment of choice.

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Section: Trans-prk Vs Smilementioning

confidence: 67%

Section: Lasik Vs Smilementioning

confidence: 97%

Section: Lasik Vs Smilementioning

confidence: 99%

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Comparison of clinical outcomes of LASIK, Trans-PRK, and SMILE for correction of myopia

Chang

Lin

Hsu

et al. 2022

Journal of the Chinese Medical Association

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“…Moreover, an increase in HOA after refractive surgery could degrade the quality of vision; hence, accurate analysis of the factors related to aberrations and the techniques to lower HOA is crucial to improving visual quality. At present, there is no surgical method that can effectively reduce the corneal HOAs, and different surgical methods may cause different HOAs (23,24). Some surgical modalities, such as small-incision lenticule extraction and wavefront-guided laser in situ keratomileusis with iris registration, have shown advantages in reducing postoperative high order corneal aberrations, but some of HOAs are still relatively obvious (24,25).…”

Section: Discussionmentioning

confidence: 99%

Factors associated with corneal high-order aberrations before and after femtosecond laser-assisted in situ keratomileusis

Zeng¹,

Lan²,

Zhu³

et al. 2021

Ann Transl Med

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Background: Corneal high-order aberrations (HOAs) are related to visual quality. However, the factors associated with corneal HOAs before and after femtosecond laser-assisted in situ keratomileusis (FS-LASIK)have not yet been elucidated. The aim of this study is to observe the factors related to corneal HOAs before and after FS-LASIK.Methods: Prospective observational study was designed to measure corneal HOAs in 149 eyes of 75 patients before and 6 months after FS-LASIK. The relationship between spherical diopter and corneal parameters, including K1 and K2 (horizontal and vertical refractive power of the cornea, respectively), the aspheric characteristics of the cornea (Q), mean radius of the curvature of the cornea (Rm), and central corneal thickness (CCT), with corneal HOAs were analyzed. Results:The spherical diopter was correlated with trefoil at 30° before surgery and with vertical coma, four-order astigmatism at 0°, trefoil at 30°, spherical aberration, and six-order spherical aberration after surgery (P<0.05). CCT was correlated with vertical coma, four-order astigmatism at 0°, trefoil at 30°, and sixorder spherical aberration after surgery (P<0.05). K1 was correlated with spherical aberration and six-order astigmatism at 0° before surgery (P<0.05). K2 was correlated with spherical aberration, six-order astigmatism at 45°, astigmatism at 0°, six-order astigmatism at 0° before surgery, and trefoil at 30° after surgery (P<0.05).Q was correlated with spherical aberration, six-order spherical aberration, and six-order astigmatism at 45° (P<0.05). Rm was correlated with six-order astigmatism at 0°, spherical aberration, six-order astigmatism at 45° before surgery, and astigmatism at 0° after surgery (P<0.05) Conclusions: Corneal parameters and spherical diopter are related to the HOAs of the cornea before and after FS-LASIK.

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“…Femtosecond laser-assisted in situ keratomileusis (FS-LASIK) is a common refractive surgical procedure. It has excellent refractive correction ability and offers predictable and stable refractive results [ 1 , 2 ]. However, FS-LASIK involves the creation of a corneal flap, which may weaken the corneal structure and decrease corneal rigidity.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the Clinical Outcomes between Combined Femtosecond Laser-Assisted In Situ Keratomileusis and Corneal Cross Linking versus Combined Small-Incision Lenticule Extraction and Corneal Cross Linking

2022

Journal of Ophthalmology

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Purpose. The purpose of this study was to compare femtosecond laser-assisted in situ keratomileusis with prophylactic cross linking (FS-LASIK Xtra) and small-incision lenticule extraction with prophylactic cross linking (SMILE Xtra) in terms of their postoperative clinical outcomes. Methods. In this retrospective study, 24 patients (48 eyes) with myopia and myopia astigmatism were recruited from 2017 to 2018. All patients underwent comprehensive ophthalmic examinations preoperatively and follow-up visits at one and three months. Four patients (eight eyes) in each group were followed up for 12 months. The following were assessed at each visit: uncorrected distance visual acuity (UDVA), manifest refractive spherical equivalent (MRSE), keratometry values, biomechanical properties, anterior and posterior curvature, and corneal pachymetry. Results. The FS-LASIK Xtra and SMILE Xtra groups both included 24 eyes of 12 patients. At 1, 3, and 12 months after surgery, a UDVA of 20/20 or better was achieved for 91.7%, 91.7%, and 87.5% of individuals, respectively, in the FS-LASIK group and 95.8%, 100%, and 100% in the SMILE group, respectively. For 75% of eyes in the FS-LASIK Xtra group and 100% of eyes in the SMILE Xtra group, the achieved MRSE was within ±1.00D of attempted correction. The LASIK Xtra group had a significantly higher mean MRSE than the SMILE Xtra group at 3 and 12 months after surgery ( P = 0.006 , 0.01 ), and the SMILE Xtra group had significantly higher K1 and K2 values than the FS-LASIK group at one month after surgery ( P = 0.024 , 0.023 ). Corneal thickness decreased significantly at one month postoperatively and started to increase over the next 12 months in both groups ( P = 0.001 ). The biomechanical properties showed no significant intergroup differences at the 12-month follow-up. Conclusions. FS-LASIK Xtra and SMILE Xtra are safe and effective in the correction of myopia and myopia astigmatism, and both procedures have the same effect on postoperative corneal morphology and biomechanics.

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Comparison of refractive outcomes and high-order aberrations after small incision lenticule extraction and wavefront-guided femtosecond-assisted laser in situ keratomileusis for correcting high myopia and myopic astigmatism

Cited by 18 publications

References 25 publications

Comparison of clinical outcomes of LASIK, Trans-PRK, and SMILE for correction of myopia

Comparison of clinical outcomes of LASIK, Trans-PRK, and SMILE for correction of myopia

Factors associated with corneal high-order aberrations before and after femtosecond laser-assisted in situ keratomileusis

Comparison of the Clinical Outcomes between Combined Femtosecond Laser-Assisted In Situ Keratomileusis and Corneal Cross Linking versus Combined Small-Incision Lenticule Extraction and Corneal Cross Linking

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