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Small incision lenticule extraction

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https://www.readbyqxmd.com/read/29148031/small-incision-lenticule-extraction-smile-monovision-for-presbyopia-correction
#1
Nikolaus Luft, Jakob Siedlecki, Walter Sekundo, Christian Wertheimer, Thomas C Kreutzer, Wolfgang J Mayer, Siegfried G Priglinger, Martin Dirisamer
PURPOSE: To evaluate the outcomes of myopic small incision lenticule extraction (SMILE) monovision in presbyopic patients. METHODS: This study included 49 presbyopic patients older than 45 years seeking surgical correction of myopia or myopic astigmatism who underwent bilateral SMILE with planned monovision in the SMILE Eyes Clinic Linz, Austria. Target refraction was plano for dominant (distance) eyes and ranged between -1.25 and -0.50 D for nondominant (near) eyes...
November 4, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29141390/-the-clinical-analysis-of-corneal-interface-fluid-syndrome-after-laser-lamellar-corneal-refractive-surgery
#2
K J Lin, J Chen, W Lin, X D Lin, Y M Zhou, L D Zheng, Y Tong
Objective: To analysis, the clinical characteristics, refractive changes, and clinical treatment of interface fluid syndrome after laser lamellar corneal refractive surgery. Methods: During Dec. 2010 to Apr. 2016. In total 6 cases(9 eyes), 3 cases were bilateral, 3 cases were unilateral. Five patients were male and 1 was female. The age of the patients ranged from 20 to 29 years was (24.83±4.02) years. Six cases(9 eyes)of IFS were diagnosed at our hospital. The history and complete ophthalmic examination that include Slit-lamp examination, Slit-lamp photography, refraction, corneal thickness measurement, corneal endothelial cell counting, IOP, anterior segment OCT(AS-OCT), exams were recorded...
November 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29123364/corneal-lenticule-storage-before-reimplantation
#3
Yu-Chi Liu, Geraint P Williams, Ben L George, Yu Qiang Soh, Xin Yi Seah, Gary Swee Lim Peh, Gary Hin Fai Yam, Jodhbir S Mehta
Purpose: To explore the optimal lenticule storage conditions that maintain lenticule integrity and clarity. Methods: A total of 99 lenticules obtained from myopic patients undergoing small incision lenticule extraction (SMILE) were divided into four combinations for short-term storage conditions: PBS, Dulbecco's Modified Eagle's Medium (DMEM), Optisol GS, or anhydrous glycerol. Two thirds of the lenticules were further stored for 4 weeks under eight different conditions...
2017: Molecular Vision
https://www.readbyqxmd.com/read/29122820/comparing-a-new-hydroexpression-technique-with-conventional-forceps-method-for-smile-lenticule-removal
#4
Alex L K Ng, George P M Cheng, Victor C P Woo, Vishal Jhanji, Tommy C Y Chan
BACKGROUND: We described a modified 'hydroexpression' technique for the lenticule removal during small-incision lenticule extraction (SMILE) surgery and compared the results with conventional forceps method. METHODS: This was a retrospective, comparative study of 50 patients who underwent SMILE surgery by the same surgeon. We compared the 1-week and 3-months postoperative results after SMILE using the hydroexpression technique with the conventional forceps technique...
November 9, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29120709/microscope-integrated-intraoperative-optical-coherence-tomography-guided-small-incision-lenticule-extraction-new-surgical-technique
#5
Namrata Sharma, Jayanand Urkude, Manthan Chaniyara, Jeewan S Titiyal
We describe the surgical technique of microscope-integrated intraoperative optical coherence tomography (OCT)-guided small-incision lenticule extraction. The technique enables manual tracking of surgical instruments and identification of the desired dissection plane. It also helps discern the relation between the dissector and the intrastromal lenticule. The dissection plane becomes hyperreflective on dissection, ensuring complete separation of the intrastromal lenticule from the overlying and underlying stroma...
October 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/29117422/erratum-for-mathematical-model-to-compare-the-relative-tensile-strength-of-the-cornea-after-prk-lasik-and-small-incision-lenticule-extraction
#6
(no author information available yet)
No abstract text is available yet for this article.
November 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29117420/intraoperative-optical-coherence-tomography-guided-management-of-cap-lenticule-adhesion-during-smile
#7
Jayanand Urkude, Jeewan S Titiyal, Namrata Sharma
PURPOSE: To report successful lenticule extraction using intraoperative optical coherence tomography (OCT) in a case of cap-lenticule adhesion during small incision lenticule extraction (SMILE). METHODS: Case report. RESULTS: A 22-year-old patient with a refractive error of -5.00 -0.50 × 120° and -5.00 -0.75 × 60° in the right and left eyes, respectively, was scheduled for SMILE. The lenticule was created using the VisuMax femtosecond laser system (Carl Zeiss Meditec, Jena, Germany)...
November 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29117419/secondary-lenticule-remnant-removal-after-smile
#8
Alex L K Ng, Peter S K Kwok, Tommy C Y Chan
PURPOSE: The authors report four cases of residual intrastromal lenticule after seemingly uneventful small incision lenticule extraction (SMILE) surgery and the outcome after a secondary procedure to remove the lenticule remnant. METHODS: Case reports. RESULTS: All four cases presented with suboptimal corrected distance visual acuity (CDVA) and refractive surprise. Irregularities in the corneal curvature and elevation were detected on corneal topography and tomography...
November 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29117415/risk-factors-for-opaque-bubble-layer-in-small-incision-lenticule-extraction-smile
#9
Liuyang Li, Julie M Schallhorn, Jiaonan Ma, Lin Zhang, Rui Dou, Yan Wang
PURPOSE: To assess the independent effect of myopia and astigmatism on the risk of the occurrence of opaque bubble layer (OBL) in small incision lenticule extraction (SMILE) and further investigate the relationship between scanning depth and OBL. METHODS: Twenty-two cases and 317 controls were included in a case-control study from the database of Tianjin Eye Hospital from April 2015 to July 2016. Baseline characteristics were recorded and all of the eyes were manually reviewed by two different observers masked to preoperative refractive status...
November 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/29102130/early-clinical-outcomes-after-small-incision-lenticule-extraction-surgery-smile
#10
Alberto Recchioni, Andreas Hartwig, Jay Dermott, Sundeep Vaswani, Jay Bhatt, Robert Morris, Clare O'Donnell
PURPOSE: Dry eye is known to impact on clinical outcomes after laser vision correction and the use of a newer 'all femtosecond laser' surgical approach may be associated with less impact on the ocular surface post-operatively. The purpose of this study was to evaluate the early clinical outcomes and tear instability after the first small incision lenticule extraction (SMILE) cases undertaken by three surgeons at a single site in the UK. METHODS: Retrospective audit...
October 25, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29101408/corneal-biomechanical-changes-and-tissue-remodeling-after-smile-and-lasik
#11
Rohit Shetty, Mathew Francis, Rushad Shroff, Natasha Pahuja, Pooja Khamar, Molleti Girrish, Rudy M M A Nuijts, Abhijit Sinha Roy
Purpose: To evaluate transient corneal tissue healing and biomechanical changes between laser in situ keratomileusis (LASIK) and small incision lenticule extraction (SMILE) eyes. Methods: In each patient, one eye underwent LASIK and the other underwent SMILE. Optical coherence tomography (OCT) and dynamic Scheimpflug imaging (Corvis-ST) was used to assess tissue healing and biomechanics, respectively. Analyses of OCT scans yielded corneal speckle distribution (CSD) and Bowman's roughness index (BRI)...
November 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29081490/a-nomogram-to-improve-predictability-of-small-incision-lenticule-extraction-surgery
#12
Gang Liang, Xu Chen, Xu Zha, Fengju Zhang
BACKGROUND This study aimed to determine and validate that use of a nomogram could enhance the predictability of small-incision lenticule extraction (SMILE) surgery. MATERIAL AND METHODS 195 eyes from 98 patients were enrolled in group 1, and 46 eyes from 26 patients in group 2. Uncorrected and corrected distance visual acuity (UDVA and CDVA), manifest refraction spherical equivalent (SE) preoperatively and 1 day, 1 week, 1 month, and 3 months postoperatively were measured. A nomogram based on the error in SE correction was generated by using multifactor regression method in group 1...
October 30, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29066773/biomechanical-simulation-of-stress-concentration-and-intraocular-pressure-in-corneas-subjected-to-myopic-refractive-surgical-procedures
#13
Po-Jen Shih, I-Jong Wang, Wen-Feng Cai, Jia-Yush Yen
Recent advances in the analysis of corneal biomechanical properties remain difficult to predict the structural stability before and after refractive surgery. In this regard, we applied the finite element method (FEM) to determine the roles of the Bowman's membrane, stroma, and Descemet's membrane in the hoop stresses of cornea, under tension (physiological) and bending (nonphysiological), for patients who undergo radial keratotomy (RK), photorefractive keratectomy (PRK), laser-assisted in situ keratomileusis (LASIK), or small incision lenticule extraction (SMILE)...
October 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29053560/evaluation-of-human-corneal-lenticule-quality-after-smile-with-different-cap-thicknesses-using-scanning-electron-microscopy
#14
Shengbei Weng, Manli Liu, Xiaonan Yang, Fang Liu, Yugui Zhou, Haiqin Lin, Quan Liu
PURPOSE: To evaluate the surface characteristics of lenticules created by small-incision lenticule extraction (SMILE) with different cap thicknesses. METHODS: This prospective study included 20 consecutive patients who underwent bilateral SMILE. Surface regularity of the extracted corneal lenticule was analyzed using scanning electron microscopy (SEM) combined with 2 methods: qualitative and quantitative regularity. Qualitative regularity of SEM images was graded by masked observers using an established scoring system...
October 17, 2017: Cornea
https://www.readbyqxmd.com/read/28979096/ectasia-following-small-incision-lenticule-extraction-smile-a-review-of-the-literature
#15
REVIEW
Majid Moshirfar, Julio C Albarracin, Jordan D Desautels, Orry C Birdsong, Steven H Linn, Phillip C Hoopes
PURPOSE: Four cases of corneal ectasia after small-incision lenticule extraction (SMILE) have been reported. In this review, we provide an overview of the published literature on corneal ectasia after SMILE and risk factors associated with this complication. METHODS: Case reports were identified by a search of seven electronic databases for pertinent heading terms between 2011 and July 2017. We identified patient characteristics and surgical details including preoperative topography, central corneal thickness, and anterior keratometry (Km)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28965357/in-vivo-confocal-microscopic-investigation-of-the-cornea-after-autologous-implantation-of-lenticules-obtained-through-small-incision-lenticule-extraction-for-treatment-of-hyperopia
#16
Meiyan Li, Meng Li, Ling Sun, Tian Han, Lan Ding, Jun Xiang, Xingtao Zhou
PURPOSE: To investigate re-innervation in the implanted lenticule, as well as changes to the cornea, after correcting hyperopia with an autologous implantation of a lenticule obtained through small incision lenticule extraction (SMILE). METHODS: This study retrospectively analysed re-innervation in the implanted lenticule, as well as microscopic morphological changes in the corneal architecture of the recipient cornea in five patients (with myopia in one eye and hyperopia in the contralateral eye) who received SMILE in the myopic eye and femtosecond laser in situ keratomileusis (FS-LASIK) combined with lenticule implantation in the contralateral hyperopic eye...
October 1, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28963702/in-vivo-confocal-laser-microscopy-of-morphologic-changes-after-small-incision-lenticule-extraction-with-accelerated-cross-linking-smile-xtra-in-patients-with-thin-corneas-and-high-myopia
#17
Yugui Zhou, Manli Liu, Ting Zhang, Hua Zheng, Yuan Sun, Xiaonan Yang, Shengbei Weng, Haiqin Lin, Quan Liu
PURPOSE: To evaluate the microstructural modifications and safety of small incision lenticule extraction combined with accelerated cross-linking (SMILE Xtra) in high myopia and thin corneas by means of in vivo confocal microscopy (IVCM) and 3D-OCT after a 6-month follow-up. METHODS: Forty-three eyes with high myopia and thin corneas were enrolled. All eyes underwent SMILE procedure. After the lenticule was extracted, 0.25% riboflavin was injected into the interface and allowed to diffuse for 60 s...
September 29, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28944205/clinical-outcomes-of-small-incision-lenticule-extraction-versus-femtosecond-laser-assisted-lasik-for-myopia-a-meta-analysis
#18
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
#19
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
#20
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
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