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Journal of Refractive Surgery

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https://www.readbyqxmd.com/read/28192594/hoffer-split-bifocal-technology
#1
LETTER
Kenneth J Hoffer
No abstract text is available yet for this article.
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28192593/erratum-for-retinal-complications-after-anterior-versus-posterior-chamber-phakic-intraocular-lens-implantation-in-a-myopic-cohort
#2
(no author information available yet)
No abstract text is available yet for this article.
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28192592/an-algorithm-to-predict-the-biomechanical-stiffening-effect-in-corneal-cross-linking
#3
Sabine Kling, Farhad Hafezi
PURPOSE: To develop an algorithm to predict the stiffening effect of CXL and to verify the accuracy with results obtained from experimental measurements. METHODS: The algorithm considers different variables: the reaction kinetics of riboflavin diffusion and riboflavin photodegradation to determine the effective riboflavin concentration in different stromal layers; the oxygen diffusion and ultraviolet (UV) absorption to determine the amount of reactive oxygen species as a function of time and stromal depth...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28192591/lasik-enhancement-clinical-and-surgical-management
#4
Majid Moshirfar, Naz Jehangir, Carlton R Fenzl, Michael McCaughey
PURPOSE: To review refractive regression and current therapeutic options for patients who have residual refractive error after LASIK. METHODS: An extensive literature search using PubMed was performed for terms such as "LASIK," "PRK," "enhancement," "overcorrection," "undercorrection," "re-lift," "mini-flap," and related terms. RESULTS: The presence of residual refractive error following LASIK is a challenging situation. After excluding anatomical causes (eg, ocular surface disease, cataract, and macular pathology) and intraoperative flap complications, evaluation of the residual stromal bed must be performed...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28192590/tomographic-findings-after-implantation-of-ferrara-intrastromal-corneal-ring-segments-in-keratoconus
#5
João Marcelo Lyra, Daniela Lyra, Guilherme Ribeiro, Leonardo Torquetti, Paulo Ferrara, Aydano Machado
PURPOSE: To analyze and compare changes to the anterior and posterior corneal surfaces after Ferrara intracorneal ring segment (ICRS) (AJL, Boecillo, Spain) implantation and to correlate those changes with visual outcomes. METHODS: This retrospective case series study comprised consecutive patients with keratoconus implanted with the Ferrara ICRS. Computed tomography scans of the two corneal surfaces were obtained preoperatively and postoperatively with a rotating Scheimpflug imaging system...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28192589/a-critical-evaluation-of-refractive-outcomes-following-lasik-for-moderate-to-high-astigmatism-using-two-excimer-laser-platforms
#6
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/28192588/conventional-versus-inverted-side-cut-flaps-for-femtosecond-laser-assisted-lasik-laboratory-and-clinical-evaluation
#7
Vishal Jhanji, Tommy C Y Chan, Wai Ying Li, Rayne R Lim, Marco C Y Yu, Kasin Law, Peng Yi, Yolanda W Y Yip, Yumeng Wang, Tsz Kin Ng, Shyam S Chaurasia, Rajiv R Mohan
PURPOSE: To study the differences in early corneal cellular events and biomechanical properties after femtosecond laser-assisted LASIK performed using conventional or inverted side-cut angles. METHODS: In the laboratory study, left eyes of 24 rabbits underwent LASIK flap creation with a 70° or 115° side-cut. The contralateral eyes served as controls. The corneas were harvested 24 hours postoperatively. In the clinical study, 2 eyes of each patient (n = 29) were randomized to corneal flap creation with 70° or 115° side-cut angles during LASIK...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28192587/advanced-surface-ablation-with-a-new-software-for-the-reduction-of-ablation-irregularities
#8
Paolo Vinciguerra, Fabrizio I Camesasca, Riccardo Vinciguerra, Samuel Arba-Mosquera, Ingrid Torres, Emanuela Morenghi, J Bradley Randleman
PURPOSE: To compare visual outcomes and postoperative aberrations after surface ablation performed with a 750-Hz versus a 1,050-Hz excimer laser coupled with an ablation software designed to reduce corneal surface irregularity. METHODS: Retrospective comparative trial of myopic eyes that had refractive surgery consecutively treated with transepithelial advanced surface ablation with a 750-Hz excimer laser (750 group) versus a 1,050-Hz excimer laser coupled with the Smart Pulse Technology ablation software (SPT group)...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28192586/three-year-stability-of-posterior-corneal-elevation-after-small-incision-lenticule-extraction-smile-for-moderate-and-high-myopia
#9
Yu Zhao, Weijun Jian, Yingjun Chen, Michael C Knorz, Xingtao Zhou
PURPOSE: To investigate long-term changes in posterior corneal elevation after small incision lenticule extraction (SMILE). METHODS: Thirty-six eyes of 20 patients (7 male, 13 female) who underwent SMILE were recruited for this prospective consecutive study. The mean preoperative manifest spherical equivalent was -6.24 ± 1.47 diopters (D) (range: -3.88 to -8.75 D). Posterior corneal surfaces were measured by a Scheimpflug camera (Pentacam; Oculus Optikgeräte GmbH, Wetzlar, Germany) preoperatively and at 1 month, 6 months, 12 months, 2 years, and 3 years after surgery...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28192585/correlations-of-objective-metrics-for-quantifying-dysfunctional-lens-syndrome-with-visual-acuity-and-phacodynamics
#10
Fernando Faria-Correia, Isaac Ramos, Bernardo Lopes, Tiago Monteiro, Nuno Franqueira, Renato Ambrósio
PURPOSE: To study the relationship between objective metrics for quantifying crystalline lens dysfunction with visual impairment and phacodynamics parameters in age-related nuclear cataracts. METHODS: A total of 51 eyes (34 patients) with age-related nuclear cataract had phacoemulsification. The Dysfunctional Lens Index (0 to 10 points) was measured by a ray-tracing aberrometry (iTrace Visual Function Analyzer; Tracey Technologies, Houston, TX). The average lens density (0 to 100) was evaluated using a rotating Scheimpflug system (Pentacam HR; Oculus Optikgeräte GmbH, Wetzlar, Germany), and the nuclear opalescence score was subjectively assessed using the Lens Opacities Classification System III (LOCS III)...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28192584/laser-assisted-capsulotomy-centration-a-prospective-trial-comparing-pupil-versus-oct-based-scanned-capsule-centration
#11
Tim Schultz, Nikolaos Tsiampalis, H Burkhard Dick
PURPOSE: To investigate different capsulotomy centration methods for femtosecond laser-assisted cataract surgery. The overlap between intraocular lens (IOL) optic and lens capsule was measured with different centration methods and IOL types. METHODS: This was a prospective randomized clinical trial. Patients with cataract scheduled for femtosecond laser-assisted cataract surgery were assigned to one of four treatment groups: optical coherence tomography (OCT)-based scanned capsule centration (SCC) and three-piece IOL (SCC with three-piece IOL); scanned capsule centration and plate-haptic IOL (SCC with plate-haptic IOL); pupil centration (PC) and three-piece IOL (PC with three-piece IOL); or PC and plate-haptic IOL (PC with plate-haptic IOL)...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28068453/2016-reviewers
#12
(no author information available yet)
No abstract text is available yet for this article.
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28068452/ectasia-after-smile-correct-interpretation-of-biomechanical-hypothesis
#13
LETTER
Abhijit Sinha Roy, Rohit Shetty
No abstract text is available yet for this article.
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28068451/clinically-relevant-interpretations-of-optical-bench-measurement-of-intraocular-lenses
#14
LETTER
Patricia A Piers, Daniel H Chang, Aixa Alarcón, Carmen Cánovas
No abstract text is available yet for this article.
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28068450/corneal-imaging-abnormalities-in-familial-keratoconus
#15
LETTER
Georgios D Kymionis, Styliani V Blazaki, Konstantinos I Tsoulnaras, Athanassios K Giarmoukakis, Michael A Grentzelos, Miltiadis K Tsilimbaris
No abstract text is available yet for this article.
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28068449/repeated-cross-linking-after-a-short-time-does-not-provide-any-additional-biomechanical-stiffness-in-the-mouse-cornea-in-vivo
#16
David Tabibian, Sabine Kling, Arthur Hammer, Olivier Richoz, Farhad Hafezi
PURPOSE: To study whether repeated collagen cross-linking (CXL) performed in vivo in mice shows an additive effect on mechanical corneal stiffness. METHODS: In this experimental study, epithelium-off CXL was performed in a total of 18 eyes from male C57BL/6 mice, with 0.27%-riboflavin solution applied for 20 minutes, followed by ultraviolet-A (UVA) irradiation (365 nm, 9mW/cm(2)) for 2:50 minutes (fluence 1.53 J/cm(2)). CXL was performed as either a single (1×CXL) or a repeated (2×CXL) treatment...
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28068448/photorefractive-keratectomy-with-mitomycin-c-in-meesmann-s-epithelial-corneal-dystrophy
#17
Ramon Coral Ghanem, André Luís Piccinini, Vinícius Coral Ghanem
PURPOSE: To describe a case of Meesmann's epithelial corneal dystrophy that underwent photorefractive keratectomy (PRK) with mitomycin C. METHODS: Case report. RESULTS: A 36-year-old woman was evaluated for refractive surgery. She had a history of recurrent epithelial erosions and moderate visual loss over the past 10 years. Biomicroscopy revealed bilateral micro-cystic epithelial lesions and a diagnosis of Meesmann's epithelial corneal dystrophy was proposed...
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28068447/corneal-ectasia-after-lasik-combined-with-prophylactic-corneal-cross-linking
#18
Suphi Taneri, Saskia Kiessler, Anika Rost, H Burkhard Dick
PURPOSE: To report a case of unilateral corneal ectasia following LASIK surgery combined with prophylactic corneal cross-linking (CXL) in a young patient. METHODS: Case report. RESULTS: Preoperative topography was unremarkable in both eyes with a minimum corneal thickness of 554 μm in the right eye and 546 μm in the left eye. Preoperative corrected distance visual acuity (CDVA) was 1.0 (20/20 Snellen) in both eyes with a refraction of +1...
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28068446/change-of-capsulotomy-over-1-year-in-femtosecond-laser-assisted-cataract-surgery-and-its-impact-on-visual-quality
#19
Christophe Panthier, Florent Costantini, Jean Claude Rigal-Sastourné, Antoine Brézin, Chadi Mehanna, Mikael Guedj, Dominique Monnet
PURPOSE: To compare the shape of the capsulotomy, its change, and its impact on visual quality over 1 year using the femtosecond laser system from the manual technique. METHODS: In this two-center cross-sectional study from May 2012 to June 2013, each patient had femtosecond laser-assisted cataract surgery in one eye (FLACS group) and conventional phacoemulsification cataract surgery in the other eye (CPCS group). An evaluation of the capsulotomy was performed using retroillumination slit-lamp photographs at 7 days, 6 months, and 1 year after surgery...
January 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28068445/presbyopic-correction-using-monocular-bi-aspheric-ablation-profile-presbymax-in-hyperopic-eyes-1-year-outcomes
#20
Tommy C Y Chan, Peter S K Kwok, Vishal Jhanji, Victor C P Woo, Alex L K Ng
PURPOSE: To present the 1-year outcomes of combining monocular bi-aspheric ablation profile and contralateral monofocal LASIK in hyperopic patients with presbyopia. METHODS: In this retrospective case series, 36 consecutive patients (72 eyes) who underwent simultaneous bi-aspheric ablation (PresbyMAX: SCHWIND Eye-Tech-Solutions GmbH and Co KG, Kleinostheim, Germany) in the non-dominant eye and monofocal regular LASIK in the dominant eye for correction of hyperopia and presbyopia were reviewed for 1 year...
January 1, 2017: Journal of Refractive Surgery
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