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Journal of Refractive Surgery

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https://www.readbyqxmd.com/read/28586504/removal-of-persistent-cellular-deposits-after-foldable-iris-fixated-phakic-iol-implantation
#1
Marilia Lordello Passos, Ramon Coral Ghanem, Vinícius Coral Ghanem
PURPOSE: To report a case of severe recurrent cellular deposits after Artiflex intraocular lens (Ophtec B. V., Groningen, The Netherlands) implantation. METHODS: Case report. RESULTS: A 25-year-old woman underwent uneventful Artiflex intraocular lens implantation in both eyes. After 3 months, severe cellular deposits were seen in the posterior surface of the lens in one eye. Topical steroids were administered, with temporary improvement. Four months later, the deposits recurred and did not respond to topical steroids...
June 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28586503/questionnaires-for-measuring-refractive-surgery-outcomes
#2
Himal Kandel, Jyoti Khadka, Mats Lundström, Michael Goggin, Konrad Pesudovs
PURPOSE: To identify the questionnaires used to assess refractive surgery outcomes, assess the available questionnaires in regard to their psychometric properties, validity, and reliability, and evaluate the performance of the available questionnaires in measuring refractive surgery outcomes. METHODS: An extensive literature search was done on PubMed, MEDLINE, Scopus, CINAHL, Cochrane, and Web of Science databases to identify articles that described or used at least one questionnaire to assess refractive surgery outcomes...
June 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28586502/biomechanical-changes-after-lasik-flap-creation-combined-with-rapid-cross-linking-measured-with-brillouin-microscopy
#3
J Bradley Randleman, Johnny P Su, Giuliano Scarcelli
PURPOSE: To evaluate the biomechanical changes occurring after LASIK flap creation and rapid corneal cross-linking (CXL) measured with Brillouin light microscopy. METHODS: Porcine eyes (n = 11) were evaluated by Brillouin light microscopy sequentially in the following order: virgin state, after LASIK flap creation, and after rapid CXL. Each eye served as its own control. Depth profile of the Brillouin frequency shift was computed to reveal the depth-dependent changes in corneal stiffness...
June 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28586501/biomechanical-characterization-of-subclinical-keratoconus-without-topographic-or-tomographic-abnormalities
#4
Riccardo Vinciguerra, Renato Ambrósio, Cynthia J Roberts, Claudio Azzolini, Paolo Vinciguerra
PURPOSE: To present a case series of patients with subclinical keratoconus with normal topometric (anterior curvature) and tomographic findings in one eye who showed abnormalities detected by Corvis ST (Oculus Optikgeräte GmbH, Wetzlar, Germany) in vivo biomechanical assessment. METHODS: All patients had a complete ophthalmic examination, including the Corvis ST biomechanical measurements, optical tomography, and pachymetry with Pentacam (Oculus Optikgeräte GmbH), and Placido-based topography with either the Nidek (OPD III Nidek, Gamagori, Japan) or CSO platform (Costruzione Strumenti Oftalmici, Florence, Italy)...
June 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28586500/implantation-of-implantable-collamer-lenses-after-radial-keratotomy
#5
Bárbara Martín-Escuer, José F Alfonso, José J Esteve-Taboada, Luis Fernández-Vega Cueto, Robert Montés-Micó
PURPOSE: To assess the predictability, efficacy, and safety of posterior chamber phakic implantable collamer lens (ICL) implantation after radial keratotomy. METHODS: In a retrospective non-comparative interventional case series, outcomes in 6 consecutive eyes of 4 patients with residual refraction after radial keratotomy were analyzed after the implantation of ICLs. All of the lenses were implanted to correct the residual refractive error, ranging from -12.00 to +3...
June 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28586499/a-new-extended-depth-of-focus-intraocular-lens-based-on-spherical-aberration
#6
Roberto Bellucci, Maria C Curatolo
PURPOSE: To describe a new extended depth of focus intraocular lens (IOL) design offering multifocality by the variation of spherical aberration in the central optical zone. METHODS: The new IOL (Mini WELL; SIFI, Catania, Italy) is an aspheric IOL with positive spherical aberration in the central 2-mm zone and negative spherical aberration in the pericentral 1-mm annulus, the amount of which was determined by specific optic calculation. The new IOL design was tested at the optical bench to investigate depth of focus and sensitivity to tilt, decentration, and angle Kappa...
June 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28586498/increased-hair-cortisol-concentrations-in-patients-with-progressive-keratoconus
#7
Janine Lenk, Eberhard Spoerl, Tobias Stalder, Susann Schmiedgen, Robert Herber, Lutz E Pillunat, Frederik Raiskup
PURPOSE: To investigate hair cortisol concentration (HCC), a biochemical correlate of chronic psychological stress, and its relationship to the progression of keratoconus. METHODS: Eighty-six participants were included in this prospective observational study (32 patients with progressive keratoconus, 32 patients with stable keratoconus, and 22 healthy controls). Hair cortisol concentrations were determined from 3-cm hair strands collected near the scalp from patients and controls as an index of cumulative cortisol secretion during the 3-month period prior to hair sampling...
June 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28586497/a-three-year-observation-of-corneal-backscatter-after-small-incision-lenticule-extraction-smile
#8
Tian Han, Jing Zhao, Yang Shen, Yingjun Chen, Mi Tian, Xingtao Zhou
PURPOSE: To investigate changes in corneal backscatter after small incision lenticule extraction (SMILE). METHODS: One eye was randomly selected from 34 patients who underwent SMILE procedures. Corneal backscatter was analyzed using Scheimpflug technology before surgery and at postoperative 1 day, 1 week, 1 month, 3, 6, and 12 months, and 3 years. Three different corneal depths (the anterior 120 µm, the center, and the posterior 60 µm) and three concentric radial zones (0 to 2, 2 to 6, and 6 to 10 mm) were analyzed...
June 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28586496/small-incision-lenticule-extraction-smile-for-hyperopia-optical-zone-diameter-and-spherical-aberration-induction
#9
Dan Z Reinstein, Kishore R Pradhan, Glenn I Carp, Timothy J Archer, Marine Gobbe, Walter Sekundo, Raynan Khan, Purushottam Dhungana
PURPOSE: To evaluate optical zone diameter efficacy and spherical aberration change in hyperopic small incision lenticule extraction (SMILE). METHODS: Prospective study of 60 consecutive hyperopic SMILE procedures using the VisuMax femtosecond laser (Carl Zeiss Meditec, Jena, Germany) and matched LASIK procedures with the VisuMax and MEL 80 excimer (Carl Zeiss Meditec) lasers. Inclusion criteria were maximum attempted hyperopic meridian of between +1.00 and +7.00 diopters (D)...
June 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28586495/meta-analysis-of-the-fda-reports-on-patient-reported-outcomes-using-the-three-latest-platforms-for-lasik
#10
Majid Moshirfar, Tirth J Shah, David Franklin Skanchy, Steve H Linn, Daniel S Durrie
PURPOSE: To analyze the impact of the three latest U.S. Food and Drug Administration (FDA)-approved lasers on patient-reported outcomes after LASIK. METHODS: In this meta-analysis of patient-reported FDA data, an aggregated total of 718 eyes undergoing LASIK using VISX iDesign (Abbott Medical Optics Manufacturing, Milpitas, CA), Alcon Contoura (Alcon Research, Ltd., Fort Worth, TX), and Nidek CATz (Nidek Co. Ltd., Gamagori, Japan) lasers were evaluated for overall changes in visual symptoms postoperatively...
June 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28486728/the-use-of-femtosecond-laser-assisted-capsulotomy-is-challenging-in-patients-with-phacomorphic-glaucoma
#11
LETTER
Ozgun Melike Gedar Totuk, Umit Aykan
No abstract text is available yet for this article.
May 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28486727/as-oct-as-a-rescue-tool-during-difficult-lenticule-extraction-in-smile
#12
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/28486726/management-of-interface-fluid-syndrome-after-lasik-by-descemet-membrane-endothelial-keratoplasty-in-a-patient-with-fuchs-corneal-endothelial-dystrophy
#13
Mehdi Shajari, Parviz Rafiezadeh, Ivana Pavlovic, Kate Barbara Kubiak, Thomas Kohnen, Ingo Schmack
PURPOSE: To report a case of interface fluid syndrome after LASIK in a patient with Fuchs' corneal endothelial dystrophy treated with Descemet membrane endothelial keratoplasty (DMEK). METHODS: Case report. RESULTS: A 74-year-old patient presented with interface fluid syndrome and was treated with DMEK. Its complications in the form of partial graft detachment and cystoid macular edema were successfully managed by rebubbling and topical treatment, respectively...
May 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28486725/regeneration-of-defective-epithelial-basement-membrane-and-restoration-of-corneal-transparency-after-photorefractive-keratectomy
#14
Gustavo K Marino, Marcony R Santhiago, Abirami Santhanam, Andre A M Torricelli, Steven E Wilson
PURPOSE: To study regeneration of the normal ultrastructure of the epithelial basement membrane (EBM) in rabbit corneas that had -9.00 D photorefractive keratectomy (PRK) and developed late haze (fibrosis) with restoration of transparency over 1 to 4 months after surgery and in corneas that had incisional wounds. METHODS: Twenty-four rabbits had one of their eyes included in one of the two procedure groups (-9.00 D PRK or nearly full-thickness incisional wounds), whereas the opposite eyes served as the unwounded control group...
May 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28486724/noncontact-quantification-of-topography-of-anterior-corneal-surface-and-bowman-s-layer-with-high-speed-oct
#15
Himanshu Matalia, Mathew Francis, Tarun Gangil, Rachana S Chandapura, Mathew Kurian, Rohit Shetty, Everette Jacob Remington Nelson, Abhijit Sinha Roy
PURPOSE: To quantify keratometry and wavefront aberration of the anterior corneal surface and epithelium-Bowman's layer interface using anterior segment optical coherence tomography (OCT). METHODS: Twenty-five normal eyes and 25 eyes with keratoconus were retrospectively analyzed. The anterior corneal edge and epithelium-Bowman's layer interface were segmented from 12 distortion-corrected OCT B-scans. Axial tangential curvatures and wavefront aberration were calculated by ray tracing and 6th order Zernike analyses...
May 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28486723/prospective-evaluation-of-outcomes-in-patients-undergoing-treatment-for-myopia-using-the-wavelight-refractive-suite
#16
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/28486722/lasik-for-the-correction-of-high-hyperopic-astigmatism-with-epithelial-thickness-monitoring
#17
Dan Z Reinstein, Glenn I Carp, Timothy J Archer, Tim Buick, Marine Gobbe, Elizabeth L Rowe, Mario Jukic, Emma Brandon, Johnny Moore, Tara Moore
PURPOSE: To evaluate outcomes of high hyperopic LASIK using the MEL 80 excimer laser (Carl Zeiss Meditec, Jena, Germany). METHODS: Retrospective analysis of 830 consecutive high hyperopic LASIK procedures using the MEL 80 excimer laser and either the VisuMax femtosecond laser (Carl Zeiss Meditec) or zero compression Hansatome microkeratome (Bausch & Lomb, Rochester, NY). Inclusion criteria were attempted hyperopic correction of +4.00 diopters [D] or higher in one axis and corrected distance visual acuity (CDVA) of 20/20 or better...
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
#18
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
#19
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/28486719/customized-topography-guided-corneal-collagen-cross-linking-for-keratoconus
#20
Myriam Cassagne, Kévin Pierné, Stéphane D Galiacy, Marie-Pierre Asfaux-Marfaing, Pierre Fournié, François Malecaze
PURPOSE: To compare the efficacy and safety of topography-guided corneal collagen cross-linking (TG-CXL) to conventional corneal CXL (C-CXL) in progressive keratoconus. METHODS: In this prospective, nonrandomized clinical trial, 60 eyes of 60 patients were scheduled to receive either TG-CXL (30 eyes with deepithelialization focused on the cone, riboflavin application for 10 minutes, and 30 mW/cm(2) pulsed ultraviolet-A irradiance pattern according to topography) or C-CXL (30 eyes treated in accordance with the Dresden protocol)...
May 1, 2017: Journal of Refractive Surgery
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