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https://www.readbyqxmd.com/read/28579751/treatment-of-moderate-to-high-hyperopia-with-the-wavelight-allegretto-400-and-ex500-excimer-laser-systems
#1
Manoj Motwani, Ronald Pei
PURPOSE: To evaluate the efficacy of treating patients with +3.00 diopters (D) to +6.00 D of hyperopia via laser-assisted in situ keratomileusis (LASIK) with the WaveLight Allegretto 400 and EX500 excimer laser systems. SETTING: Private clinical ophthalmology practice. PATIENTS AND METHODS: This was a retrospective study of patients undergoing LASIK treatments of +3.00 to +6.00 D on two different WaveLight laser systems: 163 eyes on the 400 (Hertz) Hz system and 54 eyes on the 500 Hz system...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28553071/the-use-of-wavelight-%C3%A2-contoura-to-create-a-uniform-cornea-the-lyra-protocol-part-3-the-results-of-50-treated-eyes
#2
Manoj Motwani
PURPOSE: To demonstrate how using the Wavelight Contoura measured astigmatism and axis eliminates corneal astigmatism and creates uniformly shaped corneas. PATIENTS AND METHODS: A retrospective analysis was conducted of the first 50 eyes to have bilateral full WaveLight(®) Contoura LASIK correction of measured astigmatism and axis (vs conventional manifest refraction), using the Layer Yolked Reduction of Astigmatism Protocol in all cases. All patients had astigmatism corrected, and had at least 1 week of follow-up...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28553070/the-use-of-wavelight-%C3%A2-contoura-to-create-a-uniform-cornea-the-lyra-protocol-part-2-the-consequences-of-treating-astigmatism-on-an-incorrect-axis-via-excimer-laser
#3
Manoj Motwani
PURPOSE: To show how an incorrect manifest astigmatism axis can cause an abnormal induced astigmatism on a new axis. PATIENTS AND METHODS: Four eyes of three patients were treated primarily with WaveLight(®) EX500 wavefront optimized (WFO) treatments for astigmatism. All four eyes needed enhancements and were analyzed retrospectively via WaveLight(®) Contoura to determine the reason for the incorrect astigmatism treatment. Two of the eyes were retreated with topographic-guided ablation, and two were treated with WFO correction...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28553069/the-use-of-wavelight-%C3%A2-contoura-to-create-a-uniform-cornea-the-lyra-protocol-part-1-the-effect-of-higher-order-corneal-aberrations-on-refractive-astigmatism
#4
Manoj Motwani
PURPOSE: To demonstrate how higher-order corneal aberrations can cancel out, modify, or induce lower-order corneal astigmatism. PATIENTS AND METHODS: Six representative eyes are presented that show different scenarios in which higher-order aberrations interacting with corneal astigmatism can affect the manifest refraction. WaveLight(®) Contoura ablation maps showing the higher-order aberrations are shown, as are results of correction with full measured correction using the LYRA (Layer Yolked Reduction of Astigmatism) Protocol...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28486723/prospective-evaluation-of-outcomes-in-patients-undergoing-treatment-for-myopia-using-the-wavelight-refractive-suite
#5
Arthur Cummings, Daniel Durrie, Michael Gordon, Ravaughn Williams, James A Gow, Matthias Maus
PURPOSE: To evaluate outcomes in patients with myopia up to -12.00 diopters (D), with or without astigmatism up to 6.00 D, who underwent LASIK with the WaveLight Refractive Suite (Alcon Laboratories, Inc., Fort Worth, TX). METHODS: This multicenter, prospective, single-arm study evaluated patients at baseline, on the day of surgery, and 1 day and 1, 3, and 6 months postoperatively. The primary outcome was comparison of 1-month postoperative binocular uncorrected distance visual acuity (UDVA) with preoperative binocular corrected distance visual acuity (CDVA)...
May 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28461870/assessment-of-refractive-outcome-of-femtosecond-assisted-lasik-for-hyperopia-correction
#6
Mohamed Tarek El-Naggar, Dikran Gilbert Hovaghimian
INTRODUCTION: Laser vision correction for hyperopia is challenging. The purpose of the study was to assess the refractive outcomes of femtosecond-assisted laser in situ keratomileusis (LASIK) for hyperopic correction using wavefront-optimized ablation profiles. METHODS: This retrospective case series study included 20 Egyptian patients (40 eyes) with hyperopia or hyperopic astigmatism with a mean manifest refraction spherical equivalent (MRSE) of +2.55D±1.17 (range from +1...
March 2017: Electronic Physician
https://www.readbyqxmd.com/read/28461737/comparison-of-the-biometric-measurements-calculated-with-zeiss-iol-master-and-wavelight-ob-820
#7
Georgios Labiris, Panagiota Ntonti, Konstantinos Ntitsos, Andreas Katsanos, Haris Sideroudi, Vasilios Kozobolis
BACKGROUND: The primary objective of this study was to investigate the level of agreement between IOL-Master and OB-820 ocular biometers. MATERIALS AND METHODS: In this prospective randomized case series, we measured the anterior chamber depth (ACD), the axial length (AL), the corneal radii (R1, R2), the ratio of mean corneal radius and spherical equivalent and the corneal astigmatism (cylinder [Cyl]) before and after cataract extraction surgery. RESULTS: Significant differences between pre- and postoperative data were observed for ACD for both biometric devices (P<0...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28356712/a-protocol-for-topographic-guided-corneal-repair-utilizing-the-us-food-and-drug-administration-approved-wavelight-contoura
#8
Manoj Motwani
PURPOSE: To demonstrate how Wavelight Contoura can be used to repair corneas damaged by trauma and prior poor surgical outcomes. METHODS: Four representative eyes are presented that show different scenarios in which highly irregular corneas can be corrected with Wavelight Contoura using a protocol (named the San Diego Protocol) designed to use the information in Contoura processing. Both laser-assisted in situ keratomileusis (LASIK) and photorefractive keratectomy (PRK) were used...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28192589/a-critical-evaluation-of-refractive-outcomes-following-lasik-for-moderate-to-high-astigmatism-using-two-excimer-laser-platforms
#9
Sudi Patel, Maja Bohac, Alma Biscevic, Mateja Koncarevic, Marija Anticic, Nikica Gabric
PURPOSE: To calculate the surgically induced astigmatism (SIA) following LASIK and identify any association between SIA and the target induced astigmatism (TIA) at 1 year postoperatively. METHODS: The SIA was calculated using the TIA and residual astigmatism values for [A] myopic astigmatism and [B] mixed astigmatism treated with either the [I] WaveLight Allegretto EyeQ 400-Hz (Alcon Laboratories, Inc. Fort Worth, TX) or [II] Schwind Amaris 750S (Schwind eye-tech-solutions, Kleinostheim, Germany) platforms...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28115827/comparison-and-analysis-of-fda-reported-visual-outcomes-of-the-three-latest-platforms-for-lasik-wavefront-guided-visx-idesign-topography-guided-wavelight-allegro-contoura-and-topography-guided-nidek-ec-5000-catz
#10
Majid Moshirfar, Tirth J Shah, David Franklin Skanchy, Steven H Linn, Paul Kang, Daniel S Durrie
PURPOSE: To compare and analyze the differences in visual outcomes between Visx iDesign Advanced WaveScan Studio™ System, Alcon Wavelight Allegro Topolyzer and Nidek EC-5000 using Final Fit™ Custom Ablation Treatment Software from the submitted summary of safety and effectiveness of the US Food and Drug Administration (FDA) data. METHODS: In this retrospective comparative study, 334 eyes from Visx iDesign, 212 eyes from Alcon Contour, and 135 eyes from Nidek CATz platforms were analyzed for primary and secondary visual outcomes...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28068440/a-prospective-study-to-compare-visual-outcomes-between-wavefront-optimized-and-topography-guided-ablation-profiles-in-contralateral-eyes-with-myopia
#11
Rohit Shetty, Rushad Shroff, Kalyani Deshpande, Roshan Gowda, Sumeet Lahane, Chaitra Jayadev
PURPOSE: To analyze refractive outcomes of wavefront-optimized (WFO) ablation and topography-guided custom ablation (TCAT) profiles using the Allegretto Wave excimer laser platform (Alcon Laboratories, Inc., Fort Worth, TX) in the treatment of myopia. METHODS: Sixty eyes of 30 patients who underwent LASIK were included in this prospective interventional study. WFO ablation was performed in one eye (WFO group) and TCAT in the fellow eye (TCAT group). The WaveLight FS200 femtosecond laser (Alcon Laboratories, Inc...
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28050320/changes-in-anterior-chamber-depth-after-phacoemulsification-in-pseudoexfoliative-eyes-and-their-effect-on-accuracy-of-intraocular-lens-power-calculation
#12
Sirel Gür Güngör, Ahmet Akman, Leyla Asena, Mustafa Aksoy, Almila Sarıgül Sezenöz
OBJECTIVES: To compare anterior chamber depth (ACD) changes after phacoemulsification surgery in patients with pseudoexfoliation syndrome (PEX) and normal patients using an anterior segment imaging method. Another aim of this study was to evaluate the effect of these changes on the accuracy of intraocular lens (IOL) power calculation and postoperative refraction. MATERIALS AND METHODS: Twenty-two eyes of 22 patients with PEX and 30 eyes of 30 normal patients who underwent uneventful phacoemulsification surgery and IOL implantation were included in the study...
December 2016: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28002091/vector-analysis-of-1-year-astigmatic-outcomes-from-a-randomized-fellow-eye-comparison-of-photorefractive-keratectomy-using-2-excimer-laser-platforms
#13
Brian C Toy, Edward E Manche
OBJECTIVE: To compare the astigmatic outcomes of photorefractive keratectomy (PRK) with a wavefront-guided (WFG) and a wavefront-optimized (WFO) excimer laser performed on two different platforms. METHODS: Setting: institutional. DESIGN: Prospective, randomized, fellow eye comparison clinical trial. PARTICIPANTS: A total of 142 eyes of 71 patients with myopia of 12 diopters (D) or less and astigmatism of 3D or less were enrolled at the Byers Eye Institute at Stanford between April 2009 and March 2011...
December 19, 2016: Eye & Contact Lens
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
#14
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
#15
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
#16
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
#17
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
#18
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)...
July 26, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27456563/-riboflavin-photoprotection-with-cross-linking-effect-in-photorefractive-ablation-of-the-cornea
#19
I M Kornilovskiy, 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
#20
COMPARATIVE STUDY
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
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