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https://www.readbyqxmd.com/read/27774802/-relationship-between-corneal-surface-temperature-and-air-flow-conditions-during-refractive-laser-eye-surgery-using-three-different-excimer-lasers
#1
Csaba Szekrényesi, Gábor László Sándor, Andrea Gyenes, Huba Kiss, Tamás Filkorn, Zoltán Nagy
INTRODUCTION: Thermal conditions during photorefractive keratectomy might be an important issue related to the corneal wound healing and long-term outcomes. AIM: Authors tried to find out the importance of temperature conditions during the treatment. METHOD: One eye of 90 patients has been included into the study. Photorefractive keratoctomy was applied with Carl Zeiss MEL 70, MEL 80 and Wavelight Allegretto excimer lasers. EBRO TLC 730 infrared thermometer was used for the measurement of surface temperature of the cornea before epithelial removal, as well as before and after the treatment...
October 2016: Orvosi Hetilap
https://www.readbyqxmd.com/read/27601880/comparison-of-efficacy-safety-and-predictability-of-laser-in-situ-keratomileusis-using-two-laser-suites
#2
Alexandra Meidani, Chara Tzavara
PURPOSE: The main aim of this study was to compare the efficacy, safety, and predictability of femtosecond laser-assisted in situ keratomileusis performed by two different laser suites in the treatment of myopia for up to 6 months. METHODS: In this two-site retrospective nonrandomized study, myopic eyes that underwent laser-assisted in situ keratomileusis using IntraLase FS 60 kHz formed group 1 and those using WaveLight FS200 femtosecond laser system formed group 2...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27513239/treatment-of-mixed-astigmatism-early-clinical-outcomes-withwavelight-and-technolas-excimer-lasers
#3
Ayşe Ebru Kilavuzoğlu, Tansu Gönen, Ali Rıza Cenk Çelebi, Cemile Banu Coşar Yurteri, Asım Bozkurt Şener
BACKGROUND/AIM: We aimed to compare the results of WaveLight Allegretto Wave Eye-Q 400 Hz and Technolas 217z100 excimer lasers in the treatment of mixed astigmatism. MATERIALS AND METHODS: Forty-nine patients who underwent laser in situ keratomileusis for mixed astigmatism were included in this retrospective study. Twenty-eight eyes of 21 patients were treated with WaveLight and 46 eyes of 28 patients were treated with the Technolas excimer laser. The patients' visual acuities and refractive values were evaluated on postoperative day 1 and at 1 and 3 months...
2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/27500109/comparison-of-corneal-flaps-created-by-wavelight-fs200-and-intralase-fs60-femtosecond-lasers
#4
Qian Liu, Yue-Hua Zhou, Jing Zhang, Yan Zheng, Chang-Bin Zhai, Jing Liu
AIM: To assess and compare the morphology of corneal flaps created by the Wavelight FS200 and Intralase FS60 femtosecond lasers in laser in situ keratomileusis (LASIK). METHODS: Four hundred eyes of 200 patients were enrolled in this study and divided into Wavelight FS200 groups (200 eyes) and Intralase FS60 groups (200 eyes). Fourier-domain optical coherence tomography (RTVue OCT) was used to measure the corneal flap thickness of 36 specified measurements on each flap one week after surgery...
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27457241/corneal-biomechanical-changes-in-eyes-with-small-incision-lenticule-extraction-and-laser-assisted-in-situ-keratomileusis
#5
Ihab Mohamed Osman, Hany Ahmed Helaly, Moones Abdalla, Mohsen Abou Shousha
BACKGROUND: Evaluating the corneal biomechanical changes using the Ocular Response Analyzer and the Corvis ST in eyes with incision lenticule extraction (SMILE) and laser assisted in situ keratomileusis (LASIK). METHODS: This is a retrospective study that included 50 eyes equally divided into two groups. The first group included eyes that underwent SMILE procedure using VisuMax® 500 kHz laser system (Carl Zeiss Meditec, Jena, Germany) and the second group included eyes that underwent LASIK procedure using the EX500 Allegretto excimer laser platform (Wavelight GmbH, Erlangen, Germany)...
2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27456563/-riboflavin-photoprotection-with-cross-linking-effect-in-photorefractive-ablation-of-the-cornea
#6
I M Kornilovsky, A I Sultanova, A A Burtsev
UNLABELLED: Photorefractive ablation is inevitably accompanied by oxidative stress of the cornea and weakening of its biomechanical and photoprotective properties. AIM: To validate the expediency of riboflavin use in photorefractive ablation for photoprotection of the cornea and cross-linking. MATERIAL AND METHODS: The effects of riboflavin use in photorefractive ablation was first studied in a series of in vitro and in vivo experiments performed on 56 eyes of 28 rabbits, and then on 232 eyes of 142 patients with different degrees of myopia...
May 2016: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/27163620/repeatability-of-wavefront-aberration-measurements-with-a-placido-based-topographer-in-normal-and-keratoconic-eyes
#7
Sara Ortiz-Toquero, Guadalupe Rodriguez, Victoria de Juan, Raul Martin
PURPOSE: To determine and compare the repeatability of anterior corneal higher order aberrations (HOAs) using a Placido-based topographer (Allegro Topolyzer; WaveLight Technologie AG, Alcon Laboratories, Erlangen, Germany) in a sample of normal and keratoconic eyes. METHODS: Three repeated measurements of each cornea of normal and keratoconic eyes were taken with the Allegro Topolyzer. Repeatability of the HOAs (3rd- and 4th-order individual values and normalized polar Zernike coefficients, coma-like, root mean square (RMS) up to 8th-order values, HOA RMS, and total RMS for 6-mm pupil diameter) and central corneal power (3-mm pupil) were analyzed...
May 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27070229/quality-of-vision-after-wavefront-guided-or-wavefront-optimized-lasik-a-prospective-randomized-contralateral-eye-study
#8
Jennifer S Kung, Edward E Manche
PURPOSE: To compare the effect of wavefront-guided and wavefront-optimized LASIK using different laser platforms on subjective quality of vision. METHODS: The dominant eyes of 55 participants with myopia were randomized to receive either wavefront-guided LASIK treatment by the VISX Star S4 IR Custom-Vue excimer laser system (Abbott Medical Optics, Inc., Santa Clara, CA) or wavefront-optimized treatment by the WaveLight Allegretto Wave Eye-Q 400-Hz excimer laser system (Alcon Laboratories, Inc...
April 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27070228/subjective-quality-of-vision-after-myopic-lasik-prospective-1-year-comparison-of-two-wavefront-guided-excimer-lasers
#9
Charles Q Yu, Edward E Manche
PURPOSE: To compare subjective quality of vision between two wavefront-guided lasers in the treatment of myopia up to 1 year postoperatively. METHODS: In this prospective randomized study, 100 eyes of 50 patients were treated with wavefront-guided LASIK. One eye was treated with the WaveLight Allegretto Wave Eye-Q 400-Hz excimer laser (Alcon Laboratories, Inc., Hünenberg, Switzerland) and the other was treated with the VISX Star S4 IR CustomVue excimer laser (Abbott Medical Optics, Santa Ana, CA)...
April 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27027623/agreement-between-predicted-and-measured-ablation-depth-after-femtosecond-laser-assisted-lasik-for-myopia
#10
Giacomo Savini, Arthur B Cummings, Nicole Balducci, Piero Barboni, Jinhai Huang, Marco Lombardo, Sebastiano Serrao, Pietro Ducoli
PURPOSE: To investigate agreement between the predicted ablation depth calculated by the EX500 excimer laser (Wavelight Laser Technologie AG, Erlangen, Germany) and the measured ablation depth in eyes that have undergone femtosecond laser-assisted LASIK (FS-LASIK) for myopia. METHODS: Corneal thickness was measured with a rotating Scheimpflug camera preoperatively and 3 months postoperatively and the difference between these values was defined as the measured ablation depth...
March 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27022236/femtosecond-lasers-for-laser-in-situ-keratomileusis-a-systematic-review-and-meta-analysis
#11
Anne Huhtala, Juhani Pietilä, Petri Mäkinen, Hannu Uusitalo
PURPOSE: The aim of this study was to review and meta-analyze whether there are differences between reported femtosecond (FS) lasers for laser-assisted in situ keratomileusis (LASIK) in terms of efficacy, predictability, and safety as primary outcomes and corneal flap thickness measurements and pre- and postoperative complications as secondary outcomes. METHODS: A comprehensive literature search of PubMed, Science Direct, Scopus, and Cochrane CENTRAL Trials Library databases was conducted to identify the relevant prospective randomized controlled trials of FS lasers for LASIK...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/26899220/-clinical-analysis-of-complications-of-lasik-using-the-wavelight-fs200-femtosecond-laser
#12
Yu Zhang, Yueguo Chen, Yingjie Xia
OBJECTIVE: To explore the incidence of intraoperative and early postoperative complications associated with the WaveLight FS200 femtosecond laser-assisted flap creation in LASIK surgery. METHODS: A consecutive series of 400 patients (786 eyes) who underwent LASIK using the WaveLight FS200 femtosecond laser from March 2011 to December 2012 were included in this retrospective study. Intraoperative and early postoperative complications were described and analyzed. RESULTS: The intraoperative complications included suction loss (two eyes, 0...
January 2016: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/26812709/one-year-outcomes-of-femtosecond-laser-assisted-lasik-following-previous-radial-keratotomy
#13
Sloan W Rush, Ryan B Rush
PURPOSE: To report the 1-year outcomes of LASIK in patients with previous radial keratotomy using a novel femtosecond laser platform. METHODS: The charts of 27 eyes of 18 patients who underwent femtosecond laser-assisted LASIK with the WaveLight FS200 laser (Alcon Laboratories, Inc., Fort Worth, TX) for consecutive hyperopia following previous radial keratotomy were retrospectively reviewed at a single private practice location. The preoperative characteristics, intraoperative details, and postoperative results were evaluated...
January 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/26730304/association-between-refractive-errors-and-ocular-biometry-in-iranian-adults
#14
Hassan Hashemi, Mehdi Khabazkhoob, Mohammad Hassan Emamian, Mohammad Shariati, Mohammad Miraftab, Abbasali Yekta, Hadi Ostadimoghaddam, Akbar Fotouhi
PURPOSE: To investigate the association between ocular biometrics such as axial length (AL), anterior chamber depth (ACD), lens thickness (LT), vitreous chamber depth (VCD) and corneal power (CP) with different refractive errors. METHODS: In a cross-sectional study on the 40 to 64-year-old population of Shahroud, random cluster sampling was performed. Ocular biometrics were measured using the Allegro Biograph (WaveLight AG, Erlangen, Germany) for all participants...
July 2015: Journal of Ophthalmic & Vision Research
https://www.readbyqxmd.com/read/26703289/vision-related-quality-of-life-and-visual-outcomes-after-small-incision-lenticule-extraction-and-laser-in-situ-keratomileusis
#15
COMPARATIVE STUDY
Marcus Ang, Henrietta Ho, Eva Fenwick, Ecosse Lamoureux, Hla M Htoon, Jane Koh, Donald Tan, Jodhbir S Mehta
PURPOSE: To compare vision-related quality of life (VRQoL) scores and clinical outcomes between small-incision lenticule extraction and laser in situ keratomileusis (LASIK). SETTING: Singapore National Eye Centre, Singapore. DESIGN: Prospective study. METHODS: Patients had small-incision lenticule extraction using the Visumax 500 kHz femtosecond laser; or LASIK excimer ablation with the Wavelight Allegretto 400 Hz laser...
October 2015: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/26692722/one-year-outcomes-of-photorefractive-keratectomy-with-the-application-of-mitomycin-c-in-the-treatment-of-mild-to-moderate-hyperopia
#16
Alireza Habibollahi, Hassan Hashemi, Mohammad Amin Seyedian, Shiva Mehravaran, Soheila Asgari, Sam Habibollahi, Sina Habibollahi, Mehdi Khabazkhoob
PURPOSE: To evaluate refractive and visual outcomes of photorefractive keratectomy with mitomycin-C. (PRK-MMC) for the treatment of mild to moderate hyperopia. MATERIALS AND METHODS: This case series enrolled 21 patients with up to +5.50 diopters (D) of hyperopia. All 42 eyes were treated with the Concerto (Wavelight) or the Technolas 217-Z (Bausch and Lomb) excimer laser. Outcome measures included best corrected distance vision acuity (BCVA) and uncorrected distance vision correction and refraction at 1, 3, 6, and 12 months postoperatively...
October 2015: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/26653724/control-of-induced-spherical-aberration-in-moderate-hyperopic-lasik-by-customizing-corneal-asphericity
#17
Alfredo Amigó, Sergio Bonaque-González, Eduardo Guerras-Valera
PURPOSE: To compare differences in induced aberrations and visual acuity after wavefront-optimized LASIK and aspheric-customized LASIK for the treatment of hyperopia. METHODS: Forty consecutive eyes underwent uneventful LASIK for treatment of moderate hyperopia (+3.82 ± 0.63 diopters [D] [+2.75; +5.125]). A standard procedure was performed in the wavefront-optimized LASIK group (n = 24), whereas a postoperative Q-factor equal to zero was scheduled in the aspheric-customized LASIK group (n = 16)...
December 2015: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/26649018/effect-of-wavefront-optimized-lasik-on-higher-order-aberrations-in-myopic-patients
#18
Muhammad Saim Khan, Sadia Humayun, Aisha Fawad, Mazhar Ishaq, Sabahat Arzoo, Fawad Mashhadi
OBJECTIVE: To determine mean change induced in root mean square value of higher order aberrations in myopic patients undergoing wavefront optimized laser assisted in situ keratomileusis. METHODS: This quasi experimental study was conducted at Armed Forces Institute of Ophthalmology, Rawalpindi, Pakistan from Jan 2014 to Dec 2014. Sixty eyes of 35 myopic patients were included in the study. All patients underwent wavefront optimized (WFO) laser assisted in situ keratomileusis (LASIK) using femtosecond laser (FM 200Wavelight technologies) and excimer laser (Ew 500Wavelight technologies)...
September 2015: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/26603389/comparison-of-ocular-aberrations-measured-by-a-fourier-based-hartmann-shack-and-zernike-based-tscherning-aberrometer-before-and-after-laser-in-situ-keratomileusis
#19
COMPARATIVE STUDY
Christopher S Sáles, Edward E Manche
PURPOSE: To assess agreement between a Hartmann-Shack aberrometer (Wavescan) and a Tscherning aberrometer (Wavelight Allegro Analyzer) and their respective agreement with manifest refraction before and after laser in situ keratomileusis (LASIK). SETTING: Stanford Eye Laser Center, California, USA. DESIGN: Prospective comparative observational study. METHODS: Multiple readings were obtained both aberrometers preoperatively and 12 months after wavefront-guided LASIK...
September 2015: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/26430409/comparison-of-higher-order-aberrations-in-patients-with-various-refractive-errors
#20
Muhammad Saim Khan, Sadia Humayun, Aisha Fawad, Mazhar Ishaq, Sabahat Arzoo, Fawad Mashhadi
OBJECTIVE: To compare the mean root mean square (RMS) of total higher order aberrations (HOAs), coma and spherical aberrations in individuals with myopia, hypermetropia and myopic astigmatism. METHODS: This prospective analytical study was conducted at Armed Forces Institute of Ophthalmology, Rawalpindi, Pakistan from Jan 2014 to Dec 2014. Two hundred eyes of 121 patients with age ranging from 18-40 years were included in the study. Patients were divided into 4 group namely Low myopia, High myopia, Astigmatism and Hypermetropia on the basis of refractive error...
July 2015: Pakistan Journal of Medical Sciences Quarterly
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