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https://www.readbyqxmd.com/read/28740361/matched-population-comparison-of-visual-outcomes-and-patient-satisfaction-between-3-modalities-for-the-correction-of-low-to-moderate-myopic-astigmatism
#1
Sri Ganesh, Sheetal Brar, Archana Pawar
PURPOSE: To compare toric implantable collamer lens (T-ICL), femto-LASIK, and ReLEx SMILE for the treatment of low to moderate myopic astigmatism in terms of long-term visual and refractive outcomes and predictability of astigmatic correction. MATERIALS AND METHODS: The study included 30 eyes from 30 patients between the age groups of 21 and 40 years, undergoing bilateral surgery with any of the three procedures - T-ICL, femto-LASIK, or ReLEx SMILE - for correction of myopic astigmatism within the range of -3 to -8 D spherical equivalent (SE), with a minimum astigmatism of -0...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28622316/corneal-densitometry-after-photorefractive-keratectomy-laser-assisted-in-situ-keratomileusis-and-small-incision-lenticule-extraction
#2
F Poyales, N Garzón, J Mendicute, I Illarramendi, P Caro, O Jáñez, F Argüeso, A López
PurposeThe aim of this study was to gain greater insight into the corneal densitometry changes occurring as a result of refractive surgery and to compare these changes across three widely used surgical techniques, namely, photorefractive keratectomy (PRK), laser-assisted in situ keratomileusis with a femtosecond laser (LASIK-FS), or ReLEx small-incision lenticule extraction (ReLEx SMILE).Patients and methodsThree hundred and thirty-six patients (184 male and 152 female patients) participated in this study. They were split into three groups according to the refractive surgery technique they had undergone: LASIK-FS (74 patients), PRK (153 patients), and ReLEx SMILE (109 patients)...
June 16, 2017: Eye
https://www.readbyqxmd.com/read/28551832/comparison-of-relex-smile-and-prk-in-terms-of-visual-and-refractive-outcomes-for-the-correction-of-low-myopia
#3
Sri Ganesh, Sheetal Brar, Utsav Patel
PURPOSE: To compare the objective and subjective quality of vision after femtosecond laser-assisted small incision lenticule extraction (SMILE) and photorefractive keratectomy (PRK) for low myopia. METHODS: One hundred and twenty eyes from 60 patients (34 females, 26 males) undergoing bilateral correction of low myopia (≤-4 D SE) with either ReLEx SMILE or PRK were included. Visual acuity, contrast sensitivity and higher-order aberrations were recorded preoperatively and compared postoperatively...
May 27, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28034710/a-multicenter-prospective-cohort-study-on-refractive-surgery-in-15-011-eyes
#4
RANDOMIZED CONTROLLED TRIAL
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...
March 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/27975341/refractive-lenticule-implantation-for-correction-of-ametropia-case-reports-and-literature-review
#5
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...
January 2017: Klinische Monatsblätter Für Augenheilkunde
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
#6
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...
January 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/27846649/-impact-of-different-percent-tissue-altered-values-on-visual-outcome-after-refractive-small-incision-lenticule-extraction-relex-smile
#7
D R H Breyer, P Hagen, H Kaymak, K Klabe, G U Auffarth, F T A Kretz
Purpose  To compare the visual outcomes after ReLEx SMILE treatment of eyes with low and high PTA values (PTA: percent tissue altered) within a follow-up period of up to 3 years and to assess whether a high PTA value might contribute to the development of keratectasia, as is the case for LASIK. Methods  This retrospective analysis comprises results from 313 eyes (189 patients) with a PTA value of less than 40 % and of 373 eyes (213 patients) with a PTA value of at least 40 %. Preoperatively and up to 3 years after SMILE surgery, refraction values, monocular corrected (CDVA) and uncorrected distant visual acuity (UDVA) and wavefront data were evaluated...
January 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/27757010/refractive-lenticule-extraction-relex-through-a-small-incision-smile-for-correction-of-myopia-and-myopic-astigmatism-current-perspectives
#8
REVIEW
Alper Ağca, Ahmet Demirok, Yusuf Yıldırım, Ali Demircan, Dilek Yaşa, Ceren Yeşilkaya, İrfan Perente, Muhittin Taşkapılı
Small-incision lenticule extraction (SMILE) is an alternative to laser-assisted in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK) for the correction of myopia and myopic astigmatism. SMILE can be performed for the treatment of myopia ≤-12 D and astigmatism ≤5 D. The technology is currently only available in the VisuMax femtosecond laser platform. It offers several advantages over LASIK and PRK; however, hyperopia treatment, topography-guided treatment, and cyclotorsion control are not available in the current platform...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27087308/a-crowdsourcing-workflow-for-extracting-chemical-induced-disease-relations-from-free-text
#9
Tong Shu Li, Àlex Bravo, Laura I Furlong, Benjamin M Good, Andrew I Su
Relations between chemicals and diseases are one of the most queried biomedical interactions. Although expert manual curation is the standard method for extracting these relations from the literature, it is expensive and impractical to apply to large numbers of documents, and therefore alternative methods are required. We describe here a crowdsourcing workflow for extracting chemical-induced disease relations from free text as part of the BioCreative V Chemical Disease Relation challenge. Five non-expert workers on the CrowdFlower platform were shown each potential chemical-induced disease relation highlighted in the original source text and asked to make binary judgments about whether the text supported the relation...
2016: Database: the Journal of Biological Databases and Curation
https://www.readbyqxmd.com/read/26868029/improved-lenticule-shape-for-hyperopic-femtosecond-lenticule-extraction-relex-flex-a-pilot-study
#10
Walter Sekundo, Dan Z Reinstein, Marcus Blum
The aim of this study is to establish and to prove a new lenticule shape for the treatment of hyperopia using a 500 kHz femtosecond laser and the femtosecond lenticule extraction (ReLEx FLEx) technique. Improved lenticule shapes with a large transition zone of at least 2 mm adjusted to the 5.75 mm optical zone were designed. A prospective pilot study on nine eyes of five patients who underwent an uncomplicated FLEx using VisuMax femtosecond laser (Carl Zeiss Meditec AG) for spherical hyperopia was performed...
May 2016: Lasers in Medical Science
https://www.readbyqxmd.com/read/26764882/application-of-the-smile-derived-glued-lenticule-patch-graft-in-microperforations-and-partial-thickness-corneal-defects
#11
Vipul Bhandari, Sri Ganesh, Sheetal Brar, Rahul Pandey
PURPOSE: To report the initial clinical outcomes of the small incision lenticule extraction (SMILE)-derived glued lenticule patch graft for management of microperforations and complicated corneal tears. METHODS: In this single-center case series, 7 eyes (of 7 patients) that presented with microperforations, partial-thickness corneal defect, and traumatic complicated corneal tear were repaired with a lenticule patch graft obtained from Refractive Lenticule Extraction (ReLEx) with the SMILE procedure...
March 2016: Cornea
https://www.readbyqxmd.com/read/26746577/five-year-results-of-small-incision-lenticule-extraction-relex-smile
#12
Marcus Blum, Kathrin Täubig, Christin Gruhn, Walter Sekundo, Kathleen S Kunert
BACKGROUND: To evaluate the 5-year results of Refractive Lenticule Extraction (ReLEx) as Small Incision Lenticule Extraction (SMILE) technique for treatment of myopia and myopic astigmatism. METHODS: In 2008/2009, the worldwide first 91 eyes were treated using a novel surgical technique (SMILE), where a refractive lenticule of intrastromal corneal tissue is removed though a small incision completely eliminating flap-cutting. 56 out of 91 eyes of the original treatment group volunteered for re-examination 5 years after surgery...
September 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/26613941/-complications-of-corneal-lamellar-refractive-surgery
#13
REVIEW
T Kohnen, M Remy
Techniques available for corneal lamellar refractive surgery are laser-assisted in situ keratomileusis (LASIK) using a microkeratome or femtosecond laser incision followed by excimer laser corneal ablation, and femtosecond laser-assisted refractive lenticule extraction (ReLEx). These treatments are nowadays considered to be safe and effective standard procedures for surgical correction of mild to moderate ametropia. Possible complications include too small or decentered optical zones, intraoperative flap cutting errors and postoperative inflammation (e...
December 2015: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/26229428/posterior-corneal-curvature-changes-following-refractive-small-incision-lenticule-extraction
#14
Sri Ganesh, Utsav Patel, Sheetal Brar
PURPOSE: To compare the posterior corneal curvature changes, in terms of corneal power and asphercity, following Refractive Small Incision Lenticule Extraction (ReLEx SMILE) procedure for low, moderate, and high myopia. METHODS: This retrospective, non randomized, comparative, interventional trial; included 52 eyes of 26 patients, divided in three groups: low myopia (myopia ≤3 D [diopters] spherical equivalent [SE]), moderate myopia (myopia >3 D and <6 D SE), and high myopia (myopia ≥6 D SE)...
2015: Clinical Ophthalmology
https://www.readbyqxmd.com/read/26226476/refractive-lenticule-extraction-complications
#15
COMPARATIVE STUDY
Arturo Ramirez-Miranda, Tito Ramirez-Luquin, Alejandro Navas, Enrique O Graue-Hernandez
PURPOSE: To report the complications associated with refractive lenticule extraction (ReLEx) in its 2 modalities: femtosecond lenticule extraction (FLEx) and small incision lenticule extraction (SMILE). METHODS: In this retrospective review of a consecutive clinical case series, all patients who had a complicated ReLex FLEx or ReLEx SMILE procedure at the Cornea and External Disease Department at the Instituto de Oftalmologia Fundacion Conde de Valenciana, Mexico City, Mexico, were included...
October 2015: Cornea
https://www.readbyqxmd.com/read/26221538/clinical-outcomes-of-small-incision-lenticule-extraction-with-accelerated-cross-linking-relex-smile-xtra-in-patients-with-thin-corneas-and-borderline-topography
#16
Sri Ganesh, Sheetal Brar
Purpose. To study the safety and clinical outcomes of ReLEx SMILE with accelerated cross-linking in individuals with thinner corneas, borderline topography, and higher refractive errors. Methods. Eligible patients first underwent SMILE procedure for correction of myopic refractive error. Following the removal of lenticule, 0.25% riboflavin in saline was injected into the interface and allowed to diffuse for 60 seconds. Finally, eye was exposed to UV-A radiation of 45 mW/cm(2) for 75 seconds through the cap...
2015: Journal of Ophthalmology
https://www.readbyqxmd.com/read/26097749/anterior-and-posterior-corneal-astigmatism-after-refractive-lenticule-extraction-for-myopic-astigmatism
#17
Kazutaka Kamiya, Kimiya Shimizu, Mayumi Yamagishi, Akihito Igarashi, Hidenaga Kobashi
Purpose. To assess the amount and the axis orientation of anterior and posterior corneal astigmatism after refractive lenticule extraction (ReLEx) for myopic astigmatism. Methods. We retrospectively examined 53 eyes of 53 consecutive patients (mean age ± standard deviation, 33.2 ± 6.5 years) undergoing ReLEx to correct myopic astigmatism (manifest cylinder = 0.5 diopters (D)). Power vector analysis was performed with anterior and posterior corneal astigmatism measured with a rotating Scheimpflug system (Pentacam HR, Oculus) and refractive astigmatism preoperatively and 3 months postoperatively...
2015: Journal of Ophthalmology
https://www.readbyqxmd.com/read/25724477/-smile-refractive-lenticule-extraction-for-myopic-correction
#18
C Albou-Ganem, A Lavaud, R Amar
PURPOSE: It is currently possible to obtain refractive correction without using an excimer laser; the technique is called ReLEx(®) (Refractive Lenticule extraction) and uses the femtosecond laser VisuMax(®) (Carl Zeiss Meditec, Jena, Germany). We present initial clinical experience with small-incision (4mm) lenticule extraction (SMILE) for the treatment of moderate to high myopia via a retrospective study of 106 myopic and astigmatic eyes. MATERIALS AND METHODS: This retrospective study of 106 eyes measures postoperative visual acuity to determine the safety, efficacy and predictability of the technique...
March 2015: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/25465685/incidence-and-management-of-suction-loss-in-refractive-lenticule-extraction
#19
Chee Wai Wong, Cordelia Chan, Donald Tan, Jodhbir S Mehta
PURPOSE: To describe the incidence, management, and outcomes of suction loss in refractive lenticule extraction (ReLEx). SETTING: Tertiary eye hospital. DESIGN: Retrospective case series. METHOD: All patients who experienced suction loss during refractive lenticule extraction from March 9, 2010, to August 5, 2013, were evaluated preoperatively, including slitlamp biomicroscopy, fundoscopy, corneal topography, ultrasound pachymetry, manifest and cycloplegic refractions, and measurement of uncorrected (UDVA) and corrected (CDVA) distance visual acuities...
December 2014: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/25343698/cryopreservation-of-extracted-corneal-lenticules-after-small-incision-lenticule-extraction-for-potential-use-in-human-subjects
#20
Sri Ganesh, Sheetal Brar, Pallavi A Rao
PURPOSE: To describe the technique of cryopreservation of corneal lenticules extracted after small incision refractive lenticule extraction (ReLEx SMILE) and initial results of femtosecond laser intrastromal lenticular implantation for hyperopia. METHODS: Lenticules were collected from patients undergoing ReLEx SMILE for the correction of myopia and subjected to a tissue processing technique and cryopreservation. These lenticules were subsequently used to treat 8 hyperopic eyes and 1 aphakic eye...
December 2014: Cornea
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