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femtosecond small incision lenticule extraction

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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
#1
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/27930794/using-donor-lenticules-obtained-through-smile-for-an-epikeratophakia-technique-combined-with-phototherapeutic-keratectomy
#2
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/27916313/influence-of-the-flap-on-outcomes-in-corneal-refractive-surgery-with-femtosecond-laser-smile-vs-flex
#3
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
#4
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
#5
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/27830201/corneal-biomechanics-after-small-incision-lenticule-extraction-versus-q-value-guided-femtosecond-laser-assisted-in-situ-keratomileusis
#6
Jun Zhang, Li Zheng, Xia Zhao, Yang Xu, Shu Chen
PURPOSE: The aim of this study was to compare the changes in corneal biomechanical properties following small-incision lenticule extraction (SMILE) versus Q-value-guided femtosecond laser-assisted in situ keratomileusis (Q-FS-LASIK). METHODS: In this prospective comparative study, patients with a sphere plus cylinder measurement of less than -10.00 D and cylinder measurement of less than -5.00 D were included in the study. A total of 160 patients (160 eyes) with myopia and myopic astigmatism were divided into the two groups, with 80 patients (80 eyes) allocated to SMILE and 80 patients (80 eyes) allocated to Q-FS-LASIK...
December 2016: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/27818792/smile-and-wavefront-guided-lasik-out-compete-other-refractive-surgeries-in-ameliorating-the-induction-of-high-order-aberrations-in-anterior-corneal-surface
#7
Min-Jie Ye, Cai-Yuan Liu, Rong-Feng Liao, Zheng-Yu Gu, Bing-Ying Zhao, Yi Liao
Purpose. To compare the change of anterior corneal higher-order aberrations (HOAs) after laser in situ keratomileusis (LASIK), wavefront-guided LASIK with iris registration (WF-LASIK), femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK), and small incision lenticule extraction (SMILE). Methods. In a prospective study, 82 eyes underwent LASIK, 119 eyes underwent WF-LASIK, 88 eyes underwent FS-LASIK, and 170 eyes underwent SMILE surgery. HOAs were measured with Pentacam device preoperatively and 6 months after surgery...
2016: Journal of Ophthalmology
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
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/27722756/impact-of-suction-loss-during-small-incision-lenticule-extraction-smile
#9
Manli Liu, Jianchao Wang, Wen Zhong, Danyang Wang, Yugui Zhou, Quan Liu
PURPOSE: To evaluate the clinical results of suction loss in eyes during small incision lenticule extraction (SMILE). METHODS: This prospective paired-eye case study enrolled 8,490 eyes of 4,296 patients, of which 35 eyes experienced suction loss during the SMILE procedure while being treated for myopia or myopic astigmatism. The eyes with suction loss were re-treated with SMILE, femtosecond laser-assisted LASIK (FS-LASIK), or pseudo SMILE, and the fellow eyes were treated with SMILE...
October 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27716112/accommodative-changes-after-smile-for-moderate-to-high-myopia-correction
#10
Ke Zheng, Tian Han, Xingtao Zhou
BACKGROUND: To investigate accommodative response and accommodative lag changes after femtosecond laser small incision lenticule extraction (SMILE) for moderate to high myopia correction. METHODS: A total of 32 eyes of 32 patients with no strabismus who underwent SMILE were enrolled in this prospective clinical study. The accommodative response was obtained viewing monocularly with spherical equivalent refractive error corrected, using an open-field autorefractor at different stimulus levels (2...
October 4, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27647249/-comparison-of-the-anterior-corneal-asphericity-after-small-incision-lenticule-extraction-and-femtosecond-laser-in-situ-keratomileusis
#11
X L Su, Y Wang, W J Wu, Z Q Wu, Y N Wu, C J Yu
Objective: To evaluate and compare the anterior corneal asphericity after small incision lenticule extraction(SMILE)and femtosecond laser in situ keratomileusis(FS-LASIK). Methods: In this case-control study, 45 subjects who underwent SMILE operation comprised the study group, and 33 subjects with FS-LASIK operation comprised the control group. The asphericity coefficient Q-value of the right eyes in both groups was measured at diameters of 6, 7, 8 and 9 mm, respectively, before surgery and at 1 day, 1 week, 1 month and 6 months following surgery...
September 11, 2016: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/27560032/dry-eye-after-small-incision-lenticule-extraction-and-femtosecond-laser-assisted-lasik-meta-analysis
#12
Hidenaga Kobashi, Kazutaka Kamiya, Kimiya Shimizu
PURPOSE: To compare postoperative ocular surface integrity and innervation between small incision lenticule extraction (SMILE) and femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK). METHODS: The Cochrane Central Register of Controlled Trials, PubMED, and EMBASE were searched for prospective comparative studies. Trials meeting the selection criteria were quality appraised, and the data were extracted by 2 independent authors. The weighted mean differences (WMDs) and 95% confidence intervals (CIs) were used to compare dry eye examinations and corneal subbasal nerve density (SMILE-FS-LASIK)...
January 2017: Cornea
https://www.readbyqxmd.com/read/27548888/intraocular-pressure-changes-and-relationship-with-corneal-biomechanics-after-smile-and-fs-lasik
#13
Hua Li, Yan Wang, Rui Dou, Pinghui Wei, Jiamei Zhang, Wei Zhao, Liuyang Li
PURPOSE: The purpose of this article was to evaluate intraocular pressure (IOP) changes and investigate the relationship with corneal biomechanics after small-incision lenticule extraction (SMILE) and femtosecond laser-assisted laser in situ keratomileusis (FS-LASIK). METHODS: A total of 193 eyes of 193 patients who underwent SMILE and FS-LASIK procedures were included in this retrospective study. Data were collected preoperatively and postoperatively, including Goldmann-correlated IOP (IOPg), corneal-compensated IOP (IOPcc), corneal hysteresis (CH), and corneal resistance factor (CRF) by ocular response analyzer, noncontact intraocular pressure (IOPNCT) by noncontact tonometer, and Ehlers, Shah, Dresden, Kohlhaas, Orssengo/Pye by the Pentacam corrected system...
August 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27531294/simulated-night-vision-after-small-incision-lenticule-extraction
#14
Marcus Ang, Mohd Farook, Hla M Htoon, Donald Tan, Jodhbir S Mehta
PURPOSE: To describe simulated night vision, night-vision symptoms, and refractive outcomes after small-incision lenticule extraction. SETTING: Tertiary referral eye center, Singapore. DESIGN: Prospective case series. METHODS: All patients had small-incision lenticule extraction using the Visumax 500 kHz femtosecond laser system. The main outcome measure was simulated night vision logMAR corrected distance visual acuity (CDVA) using the super vision test-night vision goggle vision chart at 12 months...
August 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27531111/-the-histopathological-observation-of-rabbit-corneas-after-small-incision-lenticule-extraction
#15
Z X Dong, L He, Z Y Sun, Y Shen, R Y Chu, X T Zhou
OBJECTIVE: To evaluate the morphological changes during corneal wound healing after small incision lenticule extraction (SMILE). METHODS: Twenty-one New Zealand white rabbits were randomly divided into 2 groups (group A of 12 rabbits and group B of 9 rabbits) using the toss of a coin. All the right eyes were treated. Group A underwent SMILE, and group B underwent femtosecond laser-assisted in situ keratomileusis (LASIK), with the same refractive corrections of-6...
July 2016: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/27492109/clinical-outcomes-of-small-incision-lenticule-extraction-and-femtosecond-laser-assisted-wavefront-guided-laser-in%C3%A2-situ%C3%A2-keratomileusis
#16
REVIEW
David P Piñero, Miguel A Teus
UNLABELLED: Small-incision lenticule extraction and wavefront-guided femtosecond-assisted laser in situ keratomileusis (LASIK) provide good visual outcomes and an efficacious correction of myopia or myopic astigmatism with similar levels of safety. Some differences in predictability and the percentage of eyes gaining lines of corrected distance visual acuity are present. A higher level of coma is present after small-incision lenticule extraction, with no clear differences between techniques in spherical aberration...
July 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27453231/a-novel-tectonic-keratoplasty-with-femtosecond-laser-intrastromal-lenticule-for-corneal-ulcer-and-perforation
#17
Yang Jiang, Ying Li, Xiao-Wei Liu, Jing Xu
BACKGROUND: Small incision refractive lenticule extraction (SMILE) is an effective laser procedure that treats myopia. This research was to describe a novel approach to treat corneal ulcer or perforation using the corneal lenticules obtained from SMILE and to evaluate the safety and effectiveness of tectonic keratoplasty with femtosecond laser intrastromal lenticule (TEKIL). METHODS: A total of twenty patients (22 eyes) were monitored for at least 6 months and were assessed using slit lamp microscopy, optical coherence tomography, and best-corrected visual acuity (BCVA)...
August 5, 2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27446606/small-incision-lenticule-extraction-for-postkeratoplasty-myopia-and-astigmatism
#18
Tamer H Massoud, Osama Ibrahim, Kitty Shehata, Moones F Abdalla
Purpose. To evaluate the visual and refractive outcomes after small incision lenticule extraction (SMILE) for treating myopia and myopic astigmatism after penetrating keratoplasty (PKP). Design. Case-series. Methods. Ten eyes of 10 patients with previous PKP and residual myopic astigmatism for whom pentacam imaging and thickness measurements were acceptable for laser vision correction. Manifest refraction (MR), uncorrected distance visual acuity (UDVA), and corrected distance visual acuity (CDVA) were obtained preoperatively and one day, one week, and one, 3, and 6 months postoperatively...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27400083/bilateral-ectasia-after-femtosecond-laser-assisted-small-incision-lenticule-extraction-smile
#19
Jaakko S Mattila, Juha M Holopainen
PURPOSE: To describe a case of bilateral ectasia after small incision lenticule extraction (SMILE) in a patient with early keratoconus. METHODS: Case report. RESULTS: Bilateral SMILE was performed on a patient even though preoperative topographies showed changes indicating early keratoconus. The right eye underwent further photorefractive keratectomy enhancement 18 months later. The patient developed a bilateral corneal ectasia. CONCLUSIONS: This case underlines the importance of thorough preoperative assessment for possible keratoconus suspect changes with corneal topography to avoid postoperative ectasia...
July 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27367803/small-incision-lenticule-extraction-smile-versus-femtosecond-laser-assisted-in-situ-keratomileusis-fs-lasik-for-myopia-a-systematic-review-and-meta-analysis
#20
Zeren Shen, Keda Shi, Yinhui Yu, Xiaoning Yu, Yuchen Lin, Ke Yao
PURPOSE: The goal of this study was to compare small incision lenticule extraction (SMILE) with femtosecond laser-assisted in situ keratomileusis (FS-LASIK) for treating myopia. METHODS: The CENTRAL, EMBASE, PubMed databases and a Chinese database (SinoMed) were searched in May of 2016. Twelve studies with 1,076 eyes, which included three randomized controlled trials (RCTs) and nine cohorts, met our inclusion criteria. The overall quality of evidence was evaluated using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) working group framework...
2016: PloS One
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