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small incision lenticule extraction

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https://www.readbyqxmd.com/read/28944205/clinical-outcomes-of-small-incision-lenticule-extraction-versus-femtosecond-laser-assisted-lasik-for-myopia-a-meta-analysis
#1
Huan Yan, Li-Yan Gong, Wei Huang, Yan-Li Peng
AIM: To evaluate the possible differences in visual quality between small incision lenticule extraction (SMILE) and femtosecond laser in situ keratomileusis (FS-LASIK) for myopia. METHODS: A Meta-analysis was performed. Patients were from previously reported comparative studies treated with SMILE versus FS-LASIK. The PubMed, EMBASE, Cochrane, Web of Science and Chinese databases (i.e. WANFANG and CNKI) were searched in Nov. of 2016 using RevMan 5.1 version software...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28940146/dry-eye-evaluation-and-correlation-analysis-between-tear-film-stability-and-corneal-surface-regularity-after-small-incision-lenticule-extraction
#2
Hui Zhang, Yan Wang
PURPOSE: To investigate the dry eye after small incision lenticule extraction (SMILE) and explore the correlations between changes in the tear film stability, the tear secretion and the corneal surface regularity. METHODS: Sixty-two eyes of 22 men and 13 women who underwent SMILE were included in this study. Corneal topography was measured to assess the index of surface variance (ISV) and the index of vertical asymmetry (IVA). Dry eye tests including subjective symptom questionnaire, tear breakup time (TBUT), corneal fluorescein staining and Schirmer's test (ST) were evaluated before and at 1 and 6 months postoperatively...
September 22, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28928982/corneal-spherical-aberration-and-corneal-asphericity-after-small-incision-lenticule-extraction-and-femtosecond-laser-assisted-lasik
#3
Hui Zhang, Yan Wang, Hua Li
PURPOSE: To investigate corneal spherical aberration and corneal asphericity after small incision lenticule extraction (SMILE) and femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK). METHODS: This study enrolled 70 patients having SMILE and 64 subjects receiving FS-LASIK. The preoperative spherical equivalent (SE) was -5.83 ± 1.23 diopters (D) and -6.20 ± 1.52 D, respectively. The uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), SE, corneal spherical aberration, and asphericity over the 6...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28880337/effect-of-lowering-laser-energy-on-the-surface-roughness-of-human-corneal-lenticules-in-smile
#4
Yong Woo Ji, Minseo Kim, David Sung Yong Kang, Dan Z Reinstein, Timothy J Archer, Jin Young Choi, Eung Kweon Kim, Hyung Keun Lee, Kyoung Yul Seo, Tae-Im Kim
PURPOSE: To determine the effect of lowering femtosecond laser energy on the surface quality of the intrastromal interface during small incision lenticule extraction (SMILE). METHODS: Forty age- and diopter-matched female patients (40 eyes) with moderate myopia received SMILE with different energy levels (100 to 150 nJ) and fixed spot separation (4.5 μm). Five human corneal lenticules from each energy group were evaluated by atomic force microscopy and scanning electron microscopy (SEM)...
September 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28844325/-visual-outcomes-four-years-after-small-incision-lenticule-extraction-smile-surgery-on-highly-myopic-eyes-french-version
#5
J Burazovitch, D Naguzeswski, T Beuste, M Guillard
OBJECTIVE: To determine whether the visual outcomes of the refractive surgery technique, small incision lenticule extraction (SMILE), are stable, effective, and predictable for high myopia over a four-year period. RESEARCH DESIGN: This is a retrospective study. The data were collected between March 2012 and July 2016. PARTICIPANTS: Two hundred and forty-eight patients participated in the study; that is, 496 eyes: 140 eyes of 70 patients (52 women/18 men) were classified in the highly myopic group (refraction measured in spherical equivalent [RMSE]>-6D), and 356 eyes of 178 patients (98 women/80 men) in the control group (RMSE≤-6D)...
September 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28822026/corneal-thickness-residual-stromal-thickness-and-its-effect-on-opaque-bubble-layer-in-small-incision-lenticule-extraction
#6
Jiaonan Ma, Yan Wang, Liuyang Li, Jiamei Zhang
PURPOSE: To evaluate the effects of the central corneal thickness (CCT) and residual stromal thickness (RST) on the formation of opaque bubble layer (OBL) during small-incision lenticule extraction (SMILE). METHODS: A total of 345 eyes from Refractive Surgery Center database at Tianjin Eye Hospital that had been subjected to SMILE surgery and followed for 6 months were included in this study and divided into OBL and OBL-free groups. Preoperative, intraoperative, and postoperative data for all eyes were evaluated and analyzed using multivariate regression analysis...
August 18, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28808774/-refractive-lenticule-extraction-the-relex-smile-technique-video-article
#7
REVIEW
M Blum, W Sekundo
Refractive lenticule extraction (ReLEx/SMILE) is a refractive surgical method developed by the authors in stages primarily for correction of myopia and myopic astigmatism, in which a femtosecond laser is exclusively used. In the (ReLEx/SMILE) method a refractive lenticule is generated by the femtosecond laser, which is subsequently extracted through a small incision. Opening of the corneal surface with a flap and use of an excimer laser is no longer necessary. In 2013 the method was newly assessed and classified by the Joint Commisssion for Refractive Surgery (KRC) of the Professional Association of Ophthalmologists (BVA) and the German Ophthalmological Society (DOG)...
August 14, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28799958/learning-curve-of-small-incision-lenticule-extraction-challenges-and-complications
#8
Jeewan S Titiyal, Manpreet Kaur, Anubha Rathi, Ruchita Falera, Manthan Chaniyara, Namrata Sharma
PURPOSE: To describe the intraoperative complications observed during the initial learning curve of small incision lenticule extraction (SMILE) and their management. METHODS: Prospective evaluation of 100 consecutive eyes (50 patients) undergoing SMILE was performed at an apex tertiary care ophthalmic center. Patients older than 18 years with a stable refractive error ranging from -1.0 to -10.0 D myopia and up to 3.0 D astigmatism were included. Any intraoperative complications and their management were noted...
August 9, 2017: Cornea
https://www.readbyqxmd.com/read/28771544/comparison-of-postoperative-visual-quality-after-smile-and-lasek-for-high-myopia-a-1-year-outcome
#9
Xiaoyu Zhu, Leilei Zou, Manrong Yu, Chen Qiu, Minjie Chen, Jinhui Dai
PURPOSE: To compare the 1-year outcome of visual quality after laser-assisted subepithelial keratomileusis (LASEK) and femtosecond laser-assisted small incision lenticule extraction (SMILE) for high myopia correction. MATERIALS AND METHODS: This prospective, comparative study included 24 eyes of 24 patients in the LASEK group, with a mean spherical equivalent (SE) of -7.59 ± 1.32 diopters, and 26 eyes of 26 patients in the SMILE group, with a mean SE of -7.91 ± 1...
2017: PloS One
https://www.readbyqxmd.com/read/28761329/comparison-of-different-intraocular-pressure-measurement-techniques-in-normal-eyes-and-post-small-incision-lenticule-extraction
#10
Mohamed Hosny, Fayrouz Aboalazayem, Hoda El Shiwy, Mohsen Salem
PURPOSE: The purpose of the study was to determine the accuracy of intraocular pressure (IOP) measurement after small incision lenticule extraction (SMILE) using Goldmann applanation tonometry (GAT) and ocular response analyzer (ORA). METHODS: This is a prospective clinical study that was conducted on 30 eyes in the interval between February 2016 and September 2016. The age of the patients ranged between 19 and 40 years. The patients underwent SMILE surgery using the femto laser...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28746183/visual-outcomes-after-balanced-salt-solution-infiltration-during-lenticule-separation-in-small-incision-lenticule-extraction-for-myopic-astigmatism
#11
RANDOMIZED CONTROLLED TRIAL
Ting Liu, Xiaomin Zhu, Kaijian Chen, Ji Bai
To evaluate the refractive outcomes of balanced salt solution infiltration during small-incision lenticule extraction (SMILE).This randomized prospective study enrolled 52 patients (104 eyes) with myopic astigmatism. Patients underwent SMILE to correct the myopic astigmatism in Daping Hospital of the Third Military Medical University between January and July 2013. One eye of each patient received traditional SMILE (control group) and the other received a modified SMILE procedure (liquid infiltration group)...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28732617/vector-analysis-of-astigmatic-changes-after-small-incision-lenticule-extraction-and%C3%A2-wavefront-guided-laser-in-situ-keratomileusis
#12
Mounir A Khalifa, Ahmed M Ghoneim, Mohamed Shafik Shaheen, David P Piñero
PURPOSE: To evaluate and compare the efficacy of the astigmatic correction after wavefront-guided laser in situ keratomileusis (LASIK) and small-incision lenticule extraction (SMILE) and in myopic eyes. DESIGN: Prospective case series. SETTING: Horus Vision Correction Center and Ellite Vision Correction Center, Alexandria, Egypt. METHODS: Myopic eyes with astigmatism up to 4.00 diopters (D) had wavefront-guided LASIK or small-incision lenticule extraction...
June 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28732616/stromal-remodeling-and-lenticule-thickness-accuracy-in-small-incision-lenticule-extraction-one-year-results
#13
Nikolaus Luft, Siegfried G Priglinger, Michael H Ring, Wolfgang J Mayer, Anna S Mursch-Edlmayr, Thomas C Kreutzer, Matthias Bolz, Martin Dirisamer
PURPOSE: To prospectively characterize the stromal thickness changes during the first year after myopic small-incision lenticule extraction using spectral-domain optical coherence tomography (SD-OCT). SETTING: Department of Ophthalmology, Kepler University Hospital, Linz, Austria. DESIGN: Prospective case series. METHODS: This study evaluated eyes that had small-incision lenticule extraction to treat myopia or myopic astigmatism...
June 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28732615/new-parameters-for-evaluating-corneal-biomechanics-and-intraocular-pressure-after-small-incision-lenticule-extraction-by%C3%A2-scheimpflug-based-dynamic-tonometry
#14
Joaquín Fernández, Manuel Rodríguez-Vallejo, Javier Martínez, Ana Tauste, Patrizia Salvestrini, David P Piñero
PURPOSE: To evaluate parameters and dynamic corneal densitometry with a new dynamic Scheimpflug analyzer (Corvis ST) in eyes having small-incision lenticule extraction (SMILE). SETTING: Qvision, Vithas Virgen del Mar Hospital, Almería, Spain. DESIGN: Retrospective case series. METHODS: The study comprised eyes from the same institution having small-incision lenticule extraction surgery. Preoperative and 1-month postoperative measurements were taken...
June 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28732614/incidence-and-management-of-intraoperative-complications-during-small-incision-lenticule-extraction-in-3004-cases
#15
Yan Wang, Jiaonan Ma, Jiamei Zhang, Rui Dou, Hui Zhang, Liuyang Li, Wei Zhao, Pinghui Wei
PURPOSE: To assess the intraoperative complications during small-incision lenticule extraction (SMILE) for myopia and myopic astigmatism correction and evaluate visual outcomes 6 months postoperatively. SETTING: Tianjin Eye Hospital, Tianjin, China. DESIGN: Retrospective case series. METHODS: Patients who had small-incision lenticule extraction surgery were examined 1 day, 7 days, 1 month, 3 months, and 6 months postoperatively...
June 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28708898/retreatment-strategies-following-small-incision-lenticule-extraction-smile-in-vivo-tissue-responses
#16
Andri K Riau, Yu-Chi Liu, Chris H L Lim, Nyein C Lwin, Ericia P Teo, Gary H Yam, Donald T Tan, Jodhbir S Mehta
With any refractive correction, including Small Incision Lenticule Extraction (SMILE), there may be a residual refractive error that requires a retreatment. Here, we investigated the tissue responses following various retreatment procedures in a rabbit model of SMILE. All rabbits underwent a -6.00D correction with SMILE. Two weeks later, they underwent -1.00D enhancement by: (i) VisuMax Circle, followed by excimer ablation (S+C); (ii) secondary SMILE anterior to the primary procedure (S+SE); or (iii) surface ablation (S+P), and were examined for 28 days...
2017: PloS One
https://www.readbyqxmd.com/read/28683793/comparison-of-visual-results-and-higher-order-aberrations-after-small-incision-lenticule-extraction-smile-high-myopia-vs-mild-to-moderate-myopia
#17
Hong-Ying Jin, Ting Wan, Fang Wu, Ke Yao
BACKGROUND: To compare the refractive results and higher-order aberrations (HOAs) after small incision lenticule extraction (SMILE) in high myopia and mild to moderate myopia patients. METHODS: This prospective study included 165 eyes (86 patients) undergoing SMILE. According to the preoperative spherical equivalent (SE), treated eyes were divided into two groups: the high myopia group (more than -6.0 D, group-H) and the mild to moderate group (less than -6.0 D, group-M)...
July 6, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28681903/contralateral-eye-comparison-of-smile-and-flap-based-corneal-refractive-surgery-computational-analysis-of-biomechanical-impact
#18
Ibrahim Seven, Ali Vahdati, Iben Bach Pedersen, Anders Vestergaard, Jesper Hjortdal, Cynthia J Roberts, William J Dupps
PURPOSE: Computational analyses were performed to quantify and directly compare the biomechanical impact of flapless and flap-based procedures in a series of patients undergoing small incision lenticule extraction (SMILE) in one eye and flap-based femtosecond lenticule extraction in the other. METHODS: Tomographic data from 10 eyes of 5 patients undergoing femtosecond laser refractive lenticule extraction for myopic astigmatism with or without a stromal flap (femtosecond lenticule extraction in one eye, SMILE in the contralateral eye) were used to generate computational models...
July 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28680704/small-incision-lenticule-extraction-for-correction-of-myopia-and-myopic-astigmatism-first-24-hour-outcomes
#19
Taixiang Liu, Tingting Dan, Yan Luo
PURPOSE: To observe the first 24-hour (h) outcomes of the small incision lenticule extraction procedure (SMILE) for myopia and myopic astigmatism. METHODS: Fifty-three eyes (27 patients) scheduled for SMILE were followed immediately (0 h), 2, 4, 6, and 24 h after SMILE. Uncorrected visual acuity (UCVA), conjunctival congestion, pain level, and corneal edema, thickness, and densitometry were recorded. RESULTS: At 2 h after SMILE, 15.1% of eyes had ≤0...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28644239/effect-of-the-learning-curve-on-visual-and-refractive-outcomes-of-small-incision-lenticule-extraction
#20
Tommy C Y Chan, Alex L K Ng, George P M Cheng, Victor C P Woo, Jiamei Zhang, Yan Wang, Vishal Jhanji
PURPOSE: To investigate the effect of the learning curve for small-incision lenticule extraction during the first 2 years of experience. METHODS: Small-incision lenticule extraction was performed using the 500-kHz VisuMax femtosecond laser (Carl Zeiss Meditec) by the same surgeon. The initial 100 patients since the surgeon started operating independently were considered as group 1; the recent 100 patients were considered as group 2. The same laser settings and technique were used...
September 2017: Cornea
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