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lenticule extraction

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https://www.readbyqxmd.com/read/28068443/possible-risk-factors-and-clinical-effects-of-opaque-bubble-layer-in-small-incision-lenticule-extraction-smile
#1
Gisung Son, Junghyun Lee, Cheolwon Jang, Ki Yong Choi, Beom Jin Cho, Tae Hyung Lim
PURPOSE: To report the development of an opaque bubble layer (OBL) during small incision lenticule extraction (SMILE) and analyze its potential risk factors and the clinical outcome. METHODS: A retrospective review of medical records was performed. The patients were divided into two groups in terms of OBL area following a posterior lenticule cut: OBL less than 5% of cornea and OBL greater than 5% of cornea. Preoperative parameters and clinical outcomes were compared...
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28068441/changes-in-astigmatism-densitometry-and-aberrations-after-smile-for-low-to-high-myopic-astigmatism-a-12-month-prospective-study
#2
Iben Bach Pedersen, Anders Ivarsen, Jesper Hjortdal
PURPOSE: To evaluate 12-month changes in refraction, visual outcome, corneal densitometry, and postoperative aberrations after small incision lenticule extraction (SMILE) for myopic astigmatism. METHODS: This 12-month prospective clinical trial comprised 101 eyes (101 patients) treated with SMILE for myopic astigmatism with cylinder of 0.75 to 4.00 diopters (D). The preoperative, 1-week, and 1-, 3-, 6-, 9-, and 12-month examinations included measurement of manifest refraction, uncorrected distance visual acuity (UDVA), and corrected (CDVA) distance visual acuity...
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28060071/corneal-lenticule-allotransplantation-after-femtosecond-laser-small-incision-lenticule-extraction-in-rabbits
#3
Jing Zhao, Yang Shen, Mi Tian, Ling Sun, Yu Zhao, Xiaoyu Zhang, Xingtao Zhou
PURPOSE: To investigate the feasibility of allotransplanting extracted lenticules after femtosecond laser-assisted small incision lenticule extraction (SMILE) in rabbits and the subsequent healing process. METHODS: Fourteen New Zealand white rabbits were divided evenly into 2 groups. The rabbits in group A received SMILE procedures with a -6.00 D correction. The lenticules from group A were immediately inserted into a femtosecond laser-created corneal stromal pocket in group B...
February 2017: Cornea
https://www.readbyqxmd.com/read/28058160/long-term-results-of-small-incision-lenticule-extraction-in-high-myopia
#4
Yusuf Yıldırım, Cengiz Alagöz, Abdülvahit Demir, Onur Ölçücü, Mehmet Özveren, Alper Ağca, Engin Bilge Özgürhan, Ahmet Demirok
OBJECTIVES: To evaluate two-year results of small-incision lenticule extraction (SMILE) for correction of high myopia. MATERIALS AND METHODS: Forty-five eyes of 35 patients with mean spherical equivalent (SE) of -7.10±0.95 D who underwent routine SMILE by a single surgeon and were followed for at least 2 years were analyzed by retrospective chart review. SMILE was performed with a Visumax femtosecond laser (Carl Zeiss Meditec, Jena, Germany). Follow-up intervals were at 1, 6, 12, and 24 months after surgery...
October 2016: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28034710/a-multicenter-prospective-cohort-study-on-refractive-surgery-in-15011-eyes
#5
Kazutaka Kamiya, Akihito Igarashi, Ken Hayashi, Kazuno Negishi, Masaki Sato, Hiroko Bissen-Miyajima
PURPOSE: To assess the clinical outcomes of currently used refractive surgery procedures performed in 2015. DESIGN: Prospective, multicenter cohort study. METHODS: This prospective study included 15,011 eyes of 7622 consecutive patients who underwent laser in situ keratomileusis (LASIK), surface ablation, refractive lenticule extraction (ReLEx), or phakic intraocular lens (IOL) implantation at 42 major institutions. We determined the safety, efficacy, predictability, stability, and adverse events of these surgeries preoperatively and at 1 week and 1 and 3 months postoperatively...
December 26, 2016: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28007101/refractive-small-incision-lenticule-extraction-push-up-and-push-down-techniques
#6
Abdelmonem Hamed, Ahmed Fekry
: We describe 2 techniques for manipulating the edge of the lenticule in refractive small-incision lenticule extraction. In the push-up technique, an instrument with a Y-shaped tip is inserted through the incision and used to push the edge of the lenticule up, facilitating visualization of the edge of the lenticule, which might accelerate the learning curve of the beginning surgeon. The push-down technique is used if the surgeon notices that the lenticule is adherent to the cap after 1 surface has been dissected, making dissection of the superficial surface difficult...
December 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27992482/dry-eye-after-small-incision-lenticule-extraction-smile-versus-femtosecond-laser-assisted-in-situ-keratomileusis-fs-lasik-for-myopia-a-meta-analysis
#7
Zeren Shen, Yanan Zhu, Xiaohui Song, Jie Yan, Ke Yao
PURPOSE: To compare dry eye after small incision lenticule extraction (SMILE) and femtosecond laser-assisted LASIK (FS-LASIK) for correcting myopia. METHODS: CENTRAL, Embase and PubMed were searched in November 2016. All randomized controlled trials (RCTs) and prospective cohorts that compared dry eye after SMILE with FS-LASIK were selected. RESULTS: Five cohorts and one RCT were identified for comparing dry eye after SMILE (291 eyes) and FS-LASIK (277 eyes)...
2016: PloS One
https://www.readbyqxmd.com/read/27990379/analysis-and-management-of-intraoperative-complications-during-small-incision-lenticule-extraction
#8
Pei-Jin Qiu, Ya-Bo Yang
No abstract text is available yet for this article.
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27975341/refractive-lenticule-implantation-for-correction-of-ametropia-case-reports-and-literature-review
#9
A Lazaridis, A Messerschmidt-Roth, W Sekundo, S Schulze
The ReLEx® technique allows correction of refractive errors through the creation and extraction of refractive stromal lenticules. Contrary to excimer laser corneal refractive procedures, where the stromal tissue is photoablated, the extracted lenticules obtained with ReLEx® can be preserved. Recent studies and case reports have described autologous re-implantation and allogeneic implantation of refractive lenticules into femtosecond-laser created stromal pockets in order to reverse the refractive outcome of a myopic corneal refractive procedure, correct hyperopia, aphakia, presbyopia and treat keratoconus...
December 14, 2016: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/27957338/comparison-of-the-optical-quality-between-small-incision-lenticule-extraction-and-femtosecond-laser-lasik
#10
Ying Jin, Yan Wang, Lulu Xu, Tong Zuo, Hua Li, Rui Dou, Jiamei Zhang
Purpose. To investigate the visual quality after SMILE and Femto-LASIK. Methods. About 123 eyes from 63 patients were enrolled in this study. The parameters were measured preoperatively and 1 week, 1 month, and 3 months postoperatively using Sirius System. Results. The MTF curve increase slightly from low to high frequency at 3 mm and 6 mm pupil diameter after SMILE surgery (P < 0.05) during the follow-up time comparing with the preoperative values. And the SR has a significant increase at various pupil diameters as well (P < 0...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27936474/-three-years-follow-up-study-after-refractive-small-incision-lenticule-extraction-smile-using-500%C3%A2-khz-femtosecond-laser-in-fast-mode
#11
A Messerschmidt-Roth, W Sekundo, A Lazaridis, S Schulze
Background: The aim of this clinical trial was to check the results of laser built-in settings 3 years after ReLEx SMILE for moderate and high myopia in unselected "real life" patients. Patients and Methods: 50 myopic eyes of 27 patients were called in for examination after 3 years. 25 of these eyes with a preoperative myopia under - 6D comprised the "moderate myopia subgroup". All surgeries were performed with the 500 kHz VisuMax® femtosecond laser (Carl Zeiss Meditec AG, Jena) in the "fast mode" setting...
December 9, 2016: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/27936473/outcome-of-a-severe-blunt-trauma-after-smile-small-incision-lenticule-extraction
#12
O Kostin, S Rebrikov, A Ovchinnikov, A Stepanov, K Takhchidi
No abstract text is available yet for this article.
December 9, 2016: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/27930797/unusual-severe-interface-inflammation-after-uneventful-small-incision-lenticule-extraction-smile
#13
Damien Guindolet, Abdellatif Badaoui, Maud Elluard, Sophie Stephan, Serge Doan, Isabelle Cochereau, Eric E Gabison
PURPOSE: To describe a 40-year-old woman who complained of visual loss in her left eye 3 days after an uneventful bilateral myopic refractive surgery by small incision lenticule extraction (SMILE). METHODS: Case report. RESULTS: A 4 × 5 mm anterior central stromal infiltration was observed with moderate pain associated with decreased corneal sensitivity and neither discharge nor fluorescein staining. Bacterial and fungal smears and cultures from the SMILE interface were negative and local antibiotic ineffective...
December 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27930794/using-donor-lenticules-obtained-through-smile-for-an-epikeratophakia-technique-combined-with-phototherapeutic-keratectomy
#14
Jing Zhao, Ling Sun, Yang Shen, Mi Tian, Peijun Yao, Xingtao Zhou
PURPOSE: To investigate the feasibility, safety, and efficacy of using a donor lenticule created during small incision lenticule extraction (SMILE) in an epikeratophakia technique combined with phototherapeutic keratectomy (PTK). METHODS: Six patients with decreased visual acuity due to a recurrence of corneal dystrophy were included in this prospective pilot study. PTK was performed using the MEL 80 excimer laser (Carl Zeiss Meditec, Jena, Germany) followed by the transplantation of donor lenticules onto the recipient eyes...
December 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27930792/corneal-thickness-after-smile-affects-scheimpflug-based-dynamic-tonometry
#15
Joaquín Fernández, Manuel Rodríguez-Vallejo, Javier Martínez, Ana Tauste, David P Piñero
PURPOSE: To evaluate the corneal biomechanical changes due to small incision lenticule extraction (SMILE) measured by Scheimpflug-based dynamic tonometry and to assess the impact of the corneal thickness. METHODS: Sixty-eight patients measured with the Corvis ST (Oculus Optikgeräte GmbH, Wetzlar, Germany) preoperatively and 1 month after SMILE were included in this retrospective observational study. Patients were divided into three groups depending on the preoperative spherical equivalent: low from -1...
December 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27916313/influence-of-the-flap-on-outcomes-in-corneal-refractive-surgery-with-femtosecond-laser-smile-vs-flex
#16
J L Alió, M El Bahrawy, A Angelov, D Ortiz, P Yébana
OBJECTIVE: To investigate the influence of creating a flap on the postoperative optical quality of the cornea in terms of predicted corneal curvature and Seidel aberrations after 2 modalities of femtosecond assisted corneal lenticule extraction laser for the correction of myopia and myopic astigmatism: The flapless procedure small incision lenticular extraction (SMILE) and the flap-based femtosecond lenticular extraction (FLEx). METHODS: The study is a prospective consecutive non-randomised comparative interventional case series including 64 eyes with myopic or myopic astigmatism refractive errors...
December 1, 2016: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/27911101/in-vivo-and-ex-vivo-evaluation-of-inflammation-and-apoptosis-induced-after-smile-procedures-for-different-refractive-error-range
#17
Leonardo Mastropasqua, Roberta Calienno, Claudia Curcio, Rodolfo Mastropasqua, Mario Nubile, Niccolò Salgari, Manuela Lanzini
PURPOSE: To detect corneal inflammation and apoptosis induced after small incision lenticule extraction (SMILE) at different refractive corrections for moderate to high values of myopia. METHODS: Fifty patients (50 eyes) suffering from medium to high myopia (spherical equivalent refraction from -3.75 to -10.00 diopters (D) with refractive astigmatism under -0.75 D) underwent SMILE in order to correct myopic error. In vivo evaluation was done by corneal confocal microscopy (IVCM) and ex vivo by immunohistochemistry...
December 2, 2016: Current Eye Research
https://www.readbyqxmd.com/read/27898448/laser-vision-correction-in-treating-myopia
#18
Germano Leal Ehlke, Ronald R Krueger
Myopia is a generally benign refractive error with an increasing prevalence worldwide. It can be corrected temporarily with glasses and contact lenses and permanently with laser vision correction. The 2 main procedures currently being performed for myopia correction are photorefractive keratectomy and laser-assisted in situ keratomileusis. Each technique has its advantages, but they appear to yield similar visual outcomes 1 year after surgery. Laser vision correction for myopia was considered a paradigm shift because healthy eyes could now undergo a surgical procedure to permanently and safely correct the error by altering the center of the cornea, which was previously off limits because of the potential for loss of transparency...
November 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/27893524/visual-outcomes-after-smile-lasek-and-lasek-combined-with-corneal-collagen-cross-linking-for-high-myopic-correction
#19
Sangyoon Hyun, Seongjun Lee, Jae-Hyung Kim
PURPOSE: To compare the visual and refractive outcomes of small-incision lenticule extraction (SMILE), laser-assisted subepithelial keratomileusis (LASEK), and LASEK combined with corneal collagen cross-linking (LASEK-CXL) surgery for high-degree myopia. METHODS: Medical records of patients with spherical equivalent (SE) greater than -6.00 diopters (D) treated with SMILE, LASEK, and LASEK-CXL were reviewed. Uncorrected distance visual acuity (UCVA), SE, and corneal haze were followed up in the 3 groups for 6 months...
November 23, 2016: Cornea
https://www.readbyqxmd.com/read/27863469/changes-in-intraocular-pressure-values-measured-with-noncontact-tonometer-nct-ocular-response-analyzer-ora-and-corvis-scheimpflug-technology-tonometer-cst-in-the-early-phase-after-small-incision-lenticule-extraction-smile
#20
Yang Shen, Xiangjian Su, Xiu Liu, Huamao Miao, Xuejun Fang, Xingtao Zhou
BACKGROUND: Corneal biomechanical properties are always compromised after corneal refractive surgeries thus leading to underestimated intraocular pressure (IOP) that complicates the management of IOP. We investigated the changes in postoperative baseline of IOP values measured with noncontact tonometer (NCT), ocular response analyzer (ORA) and corvis scheimpflug technology (CST) in the early phase after small incision lenticule extraction (SMILE). METHODS: Twenty-two eyes (-6...
November 18, 2016: BMC Ophthalmology
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