Comparison of the Optical Quality between Small Incision Lenticule Extraction and Femtosecond Laser LASIK

Jin, Ying; Wang, Yan; Xu, Lulu; Zuo, Tao; Li, Hua; Dou, Rui; Zhang, Jiamei

doi:10.1155/2016/2507973

Cited by 16 publications

(11 citation statements)

References 18 publications

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“…Many clinical studies have evaluated the pre- and post-operative effect on straylight after refractive surgery. The results were consistent: post-operative straylight values in myopes after laser-assisted in situ keratomileusis (LASIK)/ laser-assisted epithelial keratomileusis (LASEK)10–14 or after phakic intraocular lens (pIOL) implantation15,16 were on average slightly lower than pre-operative straylight measurements. Assumptions were made that these improvements are the result of ill-tolerated contact lenses pre-operatively 13,15,16.…”

Section: Introductionsupporting

confidence: 52%

<p>Straylight As The Result Of Refractive Correction</p>

Gaurisankar¹,

Rijn²,

Luyten³

et al. 2019

OPTH

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PurposeTo investigate the effect of refractive correction on straylight.Patients and methodsStraylight values were measured with the C-Quant (Oculus Optikgeräte, GmbH, Wetzlar, Germany) in 1) near-emmetropic eyes (n=30) with various negative powered refractive lenses and in 2) myopic eyes (n=30) corrected with prescribed eyeglasses and contact lenses. The straylight measurements in each group were compared in the different conditions.ResultsIn the near-emmetropic group, a significant effect (p<0.001) of each added negative diopter was found to increase straylight values with 0.006 log-units. In the second group, no significant correlation with type of correcting lens was found on straylight values.ConclusionRefractive correction with high minus power (contact) lenses result in subtle increase of straylight values. These changes are relatively small and do not lead to visual disability in a clinical setting.

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Section: Introductionsupporting

confidence: 52%

<p>Straylight As The Result Of Refractive Correction</p>

Gaurisankar¹,

Rijn²,

Luyten³

et al. 2019

OPTH

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“…Additionally, a recent prospective clinical study, which included 123 eyes of 63 patients in China (mean preoperative MRSE ± SD: −5.55 ± 1.23 D), demonstrated that in the early postoperative phase up to 3 months, even though both techniques showed great improvement in optical quality at a small pupil diameter, SMILE showed better optical quality than FS-LASIK in eyes with larger pupil diameters, which may lead to better night vision with the SMILE procedure than with LASIK. [20].…”

Section: Resultsmentioning

confidence: 99%

Comparison of Visual, Refractive and Ocular Surface Outcomes Between Small Incision Lenticule Extraction and Laser-Assisted In Situ Keratomileusis for Myopia and Myopic Astigmatism

et al. 2019

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Laser-assisted in situ keratomileusis (LASIK) is the most commonly performed laser refractive surgical technique worldwide for the treatment of myopia and myopic astigmatism. In recent years, small incision lenticule extraction (SMILE) has emerged as a promising alternative to LASIK, requiring only a single femtosecond laser to create an intrastromal lenticule, which is then removed via a small incision. The technique obviates the need for a corneal flap. A number of published studies have compared the two techniques in terms of visual, refractive and ocular surface outcomes. This review compares the clinical outcomes between LASIK and SMILE in treating myopia and myopic astigmatism based on studies published in the last 5 years. Twenty-two studies were included, all of which were observational in nature. Results suggest that the two techniques have comparable visual outcomes in terms of safety, efficacy and predictability, although recovery in visual acuity may be slower in SMILE-treated than LASIK-treated eyes. SMILE is found to result in less severe postoperative dry eye symptoms and faster recovery of corneal sensitivity than LASIK. It is important to note, however, that the SMILE technique is limited by the lack of a cyclotorsion-compensation system and option for customized treatment profile. The heterogeneity of results in this review may be attributable to the use of different LASIK platforms in different studies. Few studies compared the outcomes regarding severity of myopia. Future prospective randomized controlled trials with a larger sample size and longer follow-up period will be highly beneficial for progress in this field.

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“…The current study found no significant differences in postoperative UDVA and CDVA between the SMILE and LASIK groups, which is consistent with several previous reports. 15 , 18 – 20 However, Ganesh and Gupta 21 reported that their SMILE group achieved a higher rate of UCVA (20/20 or better) than the LASIK group. In our study, all patients in both groups achieved UDVA and CDVA 20/20 or better at 3 months after surgery.…”

Section: Discussionmentioning

confidence: 99%

Control-matched comparison of refractive and visual outcomes between small incision lenticule extraction and femtosecond laser-assisted LASIK

Kataoka

Nishida

Murata

et al. 2018

OPTH

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PurposeThis retrospective case-matched study aimed to compare visual and refractive outcomes between small incision lenticule extraction (SMILE) and LASIK.Patients and methodsPatients who underwent SMILE (34 eyes of 23 patients) or LASIK (34 eyes of 24 patients) were enrolled and matched according to preoperative manifest refractive spherical equivalents. The mean preoperative manifest refractive spherical equivalent was −4.69±0.6 and −4.67±0.64 D in the SMILE and LASIK groups, respectively. The safety, efficacy, and predictability were compared 3 months after surgery. Changes in corneal refractive power from the center to peripheral points and their maintenance ratios were analyzed and compared between the two groups.ResultsIn the SMILE and LASIK groups, 82.4% and 85.3% of patients, respectively, achieved 20/13 or better uncorrected distance visual acuity (p=1.00). There were no eyes that lost two or more lines of corrected distance visual acuity in either group. The maintenance ratios of corneal refractive power changes at the peripheral points in the SMILE group were significantly higher than those in the LASIK group (p<0.05).ConclusionBoth groups achieved similar high efficacy and safety. SMILE surgery resulted in higher refractive power correction in the peripheral cornea than LASIK surgery.

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Comparison of the Optical Quality between Small Incision Lenticule Extraction and Femtosecond Laser LASIK

Cited by 16 publications

References 18 publications

<p>Straylight As The Result Of Refractive Correction</p>

<p>Straylight As The Result Of Refractive Correction</p>

Comparison of Visual, Refractive and Ocular Surface Outcomes Between Small Incision Lenticule Extraction and Laser-Assisted In Situ Keratomileusis for Myopia and Myopic Astigmatism

Control-matched comparison of refractive and visual outcomes between small incision lenticule extraction and femtosecond laser-assisted LASIK

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