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Small incision lenticule extraction

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https://www.readbyqxmd.com/read/28532930/comparison-of-immediate-small-incision-lenticule-extraction-after-suction-loss-with-uneventful-small-incision-lenticule-extraction
#1
Jin Hyoung Park, Hyung Jin Koo
PURPOSE: To evaluate and compare the predictability and safety of immediate small-incision lenticule extraction, also known as SMILE, after suction loss during the procedure with those of uneventful small-incision lenticule extraction. SETTING: Nunemiso Eye Center, Seoul, South Korea. DESIGN: Retrospective case series. METHODS: Patients who had immediate small-incision lenticule extraction using reapplied suction (study group) or uneventful small-incision lenticule extraction (control group) for myopia or myopic astigmatism were included...
April 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28532929/visual-and-refractive-outcomes-of-small-incision-lenticule-extraction-in-mild-moderate-and-high-myopia-six-month-results
#2
Magda A Torky, Yousif A Alzafiri
PURPOSE: To evaluate the efficacy, safety, predictability, and stability of small-incision lenticule extraction in low, moderate, and high myopia. DESIGN: Prospective case series. METHODS: Eyes were divided into a low myopia group (spherical equivalent [SE] refraction -1.00 to -3.00 diopters [D]), moderate myopia group (SE refraction of -3.25 to -6.00 D), and high myopia group (SE refraction -6.25 to -10.00 D). Small-incision lenticule extraction surgery was performed, and outcomes were reported 6 months postoperatively...
April 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28532926/sequential-segmental-terminal-lenticular-side-cut-dissection-for-safe-and-effective-small-incision-lenticule-extraction-in-thin-lenticules
#3
Soosan Jacob, Amar Agarwal, Cosimo Mazzotta, Athiya Agarwal, John Michael Raj
Small-incision lenticule extraction may be associated with complications such as partial lenticular dissection, torn lenticule, lenticular adherence to cap, torn cap, and sub-cap epithelial ingrowth, some of which are more likely to occur during low-myopia corrections. We describe sequential segmental terminal lenticular side-cut dissection to facilitate minimally traumatic and smooth lenticular extraction. Anterior lamellar dissection is followed by central posterior lamellar dissection, leaving a thin peripheral rim and avoiding the lenticular side cut...
April 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28503439/dry-eye-and-corneal-sensitivity-after-small-incision-lenticule-extraction-and-femtosecond-laser-assisted-in-situ-keratomileusis-a-meta-analysis
#4
Wen-Ting Cai, Qing-Yu Liu, Cheng-Da Ren, Qing-Quan Wei, Jun-Ling Liu, Qian-Yi Wang, Ya-Ru Du, Meng-Mei He, Jing Yu
AIM: To assess the corneal sensitivity and the incidences of dry eye after small incision lenticule extraction (SMILE) and femtosecond laser-assisted in situ keratomileusis (FS-LASIK). METHODS: The Meta-analysis was performed using RevMan 5.3. We searched on PubMed from inception to March 2016. Summary weighted mean difference (WMD) and 95% confidence intervals (CIs) were used to analyze the datum. Random-effects or fixed-effects models were chosen up to between-study heterogeneity...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28499707/lower-laser-energy-levels-lead-to-better-visual-recovery-after-small-incision-lenticule-extraction-prospective-randomized-clinical-trial
#5
Yong Woo Ji, Minseo Kim, David Sung Yong Kang, Dan Reinstein, Timothy Archer, Jin Young Choi, Eung Kweon Kim, Hyung Keun Lee, Kyoung Yul Seo, Tae-Im Kim
PURPOSE: To determine the effect of lowering laser energy on clinical outcomes in small-incision lenticule extraction (SMILE). DESIGN: Prospective, randomized clinical trial. METHODS: 151 patients (151 eyes) with moderate myopia scheduled for SMILE were included: 58 eyes received SMILE with low energy (100, 105, and 110 nJ; L-SMILE group) and 93 with conventional energy (115 to 150 nJ; C-SMILE group). Patients received complete ophthalmic examinations preoperatively and over 3 months postoperatively...
May 9, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28494492/biomechanical-differences-between-femtosecond-lenticule-extraction-flex-and-small-incision-lenticule-extraction-smile-tested-by-2d-extensometry-in-ex-vivo-porcine-eyes
#6
Bogdan Spiru, Sabine Kling, Farhad Hafezi, Walter Sekundo
Purpose: To evaluate the biomechanical stability of ex vivo porcine corneas after femtosecond lenticule extraction (FLEx) and small incision lenticule extraction (SmILE) refractive surgeries. Methods: Forty-five porcine eyes were equally divided into three groups: Groups 1 and 2 were treated with FLEx and SmILE procedure, respectively. Group 3 served as control. A refractive correction of -14 diopters (D) with a 7-mm zone using either a 160-μm flap (FLEx) or a 160-μm cap (SmILE) was performed...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28486727/as-oct-as-a-rescue-tool-during-difficult-lenticule-extraction-in-smile
#7
Jeewan S Titiyal, Anubha Rathi, Manpreet Kaur, Ruchita Falera
PURPOSE: To report a case of lenticule adherent to the anterior cap during small incision lenticule extraction (SMILE) and its subsequent management aided by anterior segment optical coherence tomography (AS-OCT). METHODS: Case report. RESULTS: A 24-year-old woman presented with high myopia of -8.00 -0.50 @ 180° in the right eye and -8.00 -0.25 @ 180° in the left eye and underwent SMILE. In the right eye, difficulty was experienced in separating the lenticule from adjacent stroma...
May 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28486721/topography-guided-lasik-versus-small-incision-lenticule-extraction-smile-for-myopia-and-myopic-astigmatism-a-randomized-prospective-contralateral-eye-study
#8
Anastasios John Kanellopoulos
PURPOSE: To compare safety and efficacy of topography-guided LASIK and contralateral eye SMILE for myopia and myopic astigmatism correction. METHODS: This prospective, randomized contralateral eye study included 44 eyes of 22 patients with bilateral myopia or myopic astigmatism. Treated eyes were divided into two groups: 22 eyes were treated with topography-guided LASIK and the fellow eye of each patient was treated with SMILE. The following parameters were evaluated preoperatively and up to 3 months postoperatively: uncorrected distance vision acuity (UDVA), corrected distance vision acuity (CDVA), refractive error, corneal keratometry, contrast sensitivity, and Objective Scatter Index...
May 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28486720/comparative-analysis-of-the-clinical-outcomes-of-smile-and-wavefront-guided-lasik-in-low-and-moderate-myopia
#9
Mounir A Khalifa, Ahmed Ghoneim, Mohamed Shafik Shaheen, Mohamed G Aly, David P Piñero
PURPOSE: To compare the clinical outcomes of small incision lenticule extraction (SMILE) and wavefront-guided LASIK (WFG LASIK) in eyes with low and moderate myopia. METHODS: This was a prospective, comparative study enrolling 110 eyes with low and moderate myopia (spherical equivalent ≤ 6.00 diopters [D]). Two groups were differentiated according to the surgical technique used: the WFG LASIK group included 51 eyes (51 patients) undergoing WFG LASIK using the STAR S4IR excimer laser and the iDesign aberrometer (Abbott Medical Optics, Abbott Park, IL) and the SMILE group included 59 eyes (59 patients) undergoing SMILE with the VisuMax platform (Carl Zeiss Meditec, Jena, Germany)...
May 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28422822/intraoperative-centration-during-small-incision-lenticule-extraction-smile
#10
John X Wong, Elizabeth P Wong, Hla M Htoon, Jodhbir S Mehta
To evaluate intraoperative decentration from pupil center and kappa intercept during small incision lenticule extraction (SMILE) and its impact on visual outcomes.This was a retrospective noncomparative case series. A total of 164 eyes that underwent SMILE at the Singapore National Eye Center were included. Screen captures of intraoperative videos were analyzed. Preoperative and 3 month postoperative vision and refractive data were analyzed against decentration.The mean preoperative spherical equivalent (SE) was -5...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28421140/comparison-of-corneal-power-and-astigmatism-between-simulated-keratometry-true-net-power-and-total-corneal-refractive-power-before-and-after-smile-surgery
#11
Yishan Qian, Yan Liu, Xingtao Zhou, Rajeev Krishnan Naidu
Purpose. To compare the mean corneal power (Km) and total astigmatism (Ka) estimated by three methods: simulated keratometry (simK), true net power (TNP), and total corneal refractive power (TCRP) before and after femtosecond laser small incision lenticule extraction (SMILE) surgery. Methods. A retrospective, cross-sectional study. SimK, TNP, and TCRP from a Scheimpflug analyzer were obtained from 144 patients before and 6 months after SMILE surgery. Km and Ka were recorded as the mean of individual paracentral rings of 1...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28409225/stromal-lenticule-transplantation-for-management-of-corneal-perforations-one-year-results
#12
Mohamed Samy Abd Elaziz, Adel Galal Zaky, Abdel Rahman El SaebaySarhan
PURPOSE: To study application of stromal lenticules extracted by femtolaser small incision lenticule extraction (SMILE) surgery as a surgical adjuvant to seal corneal perforations. METHODS: Corneal stromal lenticules obtained through SMILE surgery with central thickness 100 μm or more were fixed over corneal perforation sites using 10-0 nylon interrupted stitches with an overlying single layer of amniotic membrane. Seven patients who had been followed up for a minimum of 12 months were assessed using slit-lamp biomicroscopy, fluorescein stain, tonometry, and best spectacle-corrected visual acuity (BSCVA) measurements...
April 13, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28407169/collagen-cross-linking-with-photoactivated-riboflavin-pack-cxl-for-bacterial-keratitis-after-small-incision-lenticule-extraction-smile
#13
Tommy C Y Chan, Vanissa W S Chow, Vishal Jhanji
PURPOSE: To report a case of infectious keratitis after small incision lenticule extraction (SMILE) treated with collagen cross-linking with photoactivated riboflavin (PACK-CXL). METHODS: Case report and literature review. RESULTS: A patient presented with culture-proven bacterial keratitis 5 days after SMILE was treated with fortified topical antibiotics and PACK-CXL. Irrigation of the corneal cap-stromal bed interface, which can be difficult and affect visual outcomes, was not performed...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407165/comparison-of-corneal-epithelial-remodeling-after-femtosecond-laser-assisted-lasik-and-small-incision-lenticule-extraction-smile
#14
Ik-Hee Ryu, Bong Jun Kim, Jong-Hyuck Lee, Sun Woong Kim
PURPOSE: To comparatively investigate changes in epithelial thickness between myopic femtosecond laser-assisted LASIK (FS-LASIK) and small incision lenticule extraction (SMILE). METHODS: This study compared the topographic epithelial thickness changes in 175 myopic eyes undergoing FS-LASIK (62 eyes) or SMILE (113 eyes). Epithelial thickness was obtained using spectral-domain optical coherence tomography before surgery and 1 and 3 months after surgery. Topographic epithelial thickness obtained by automatic algorithm and thickness variability (standard deviation over 17 imaged areas) was compared between two groups...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28407161/preliminary-evidence-of-successful-near-vision-enhancement-with-a-new-technique-presbyopic-allogenic-refractive-lenticule-pearl-corneal-inlay-using-a-smile-lenticule
#15
Soosan Jacob, Dhivya Ashok Kumar, Amar Agarwal, Athiya Agarwal, Ramalingam Aravind, A I Saijimol
PURPOSE: To describe a new technique (PrEsbyopic Allogenic Refractive Lenticule [PEARL] inlay) using an allogenic corneal inlay prepared from a small incision lenticule extraction (SMILE) lenticule. METHODS: A SMILE lenticule of specified thickness (mean: 61.5 ± 3.32 µm) was trephined at the center to 1-mm diameter and implanted in the cornea on the coaxially sighted light reflex under a femtosecond laser-created cap of 120 µm in the nondominant eye of presbyopic patients...
April 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28396804/impact-of-treatment-decentration-on-higher-order-aberrations-after-smile
#16
Ying Yu, Wenwen Zhang, Xinliang Cheng, Jianru Cai, Hui Chen
Purpose. To evaluate decentration following femtosecond laser small incision lenticule extraction (SMILE) and sub-Bowman keratomileusis (SBK) and its impact on higher-order aberrations (HOAs). Methods. Prospective, nonrandom, and comparison study. There were 96 eyes of 52 patients who received SMILE and 96 eyes of 49 patients who received SBK in this study. Decentration was calculated 6 months after surgery with Pentacam. HOAs and visual acuity after the surgery were examined for patients in both groups before and 6 months after surgery...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28396803/corneal-clarity-and-visual-outcomes-after-small-incision-lenticule-extraction-and-comparison-to-femtosecond-laser-assisted-in-situ-keratomileusis
#17
Apostolos Lazaridis, Konstantinos Droutsas, Walter Sekundo, Michael Petrak, Stephan Schulze
Purpose. To evaluate corneal clarity and visual outcomes after small-incision lenticule extraction (SMILE) and compare them to femtosecond laser-assisted in situ keratomileusis (FS-LASIK). Materials and Methods. Fifty-eight myopic eyes of 33 patients who underwent SMILE were compared to 58 eyes of 33 patients treated with FS-LASIK. All procedures were performed using VisuMax® femtosecond laser and MEL 80® excimer laser (Carl Zeiss Meditec AG, Germany). Pentacam™ (Oculus, Germany) was used for pre- and 3-month postoperative corneal densitometry (CD) analysis...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28388896/comparison-of-ocular-higher-order-aberrations-after-smile-and-wavefront-guided-femtosecond-lasik-for-myopia
#18
Xiaoqin Chen, Yan Wang, Jiamei Zhang, Shun-Nan Yang, Xiaojing Li, Lin Zhang
BACKGROUND: To compare changes in higher-order aberrations (HOAs) following small incision lenticule extraction (SMILE) and wavefront-guided femtosecond laser-assisted in situ keratomileusis (WFG FS-LASIK), and to investigate correlations between preoperative spherical equivalence (SE) and components of HOAs affecting visual quality. METHODS: Sixty-five myopic eyes from 38 patients were enrolled in the study retrospectively, either having undergone SMILE or WFG FS-LASIK...
April 7, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28379651/visual-quality-after-femtosecond-laser-small-incision-lenticule-extraction
#19
Huamao Miao, Tian Han, Mi Tian, Xiaoying Wang, Xingtao Zhou
Femtosecond laser small incision lenticule extraction (SMILE) is a newly developed form of "flapless" corneal refractive surgery with all-in-one technology. Femtosecond laser SMILE is increasingly attractive for both doctors and patients because it is minimally invasive and does not require a flap to be lifted during surgery. It exhibits many advantages in terms of morphology, biomechanical effects, corneal wound healing, and nerve rehabilitation. However, visual quality assessment after refractive surgeries is just as important as these advantages and correlates with patient satisfaction...
March 29, 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28379648/cap-lenticular-adhesion-during-small-incision-lenticular-extraction-surgery-causative-factors-and-outcomes
#20
Rohit Shetty, Nikhil Negalur, Rushad Shroff, Kalyani Deshpande, Chaitra Jayadev
PURPOSE: To study the factors causing cap lenticular adhesion (CLA), a rare complication of small incision lenticule extraction (SMILE) surgery, and its effect on surgical outcomes. DESIGN: A prospective, observational, cross-sectional study involving 550 eyes of 285 subjects. METHODS: SMILE was performed using the VisuMax femtosecond laser (Carl Zeiss Meditec, Jena, Germany) with a minimum of 3 months follow-up. Preoperative visual quality assessment, measurement of corneal biomechanics, and Bowman membrane imaging were performed...
March 29, 2017: Asia-Pacific Journal of Ophthalmology
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