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cataract and refractive ophthalmology

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https://www.readbyqxmd.com/read/27833928/comparison-of-a-new-optical-biometer-and-a-standard-biometer-in-cataract-patients
#1
Pipat Kongsap
BACKGROUND: Cataract surgery is the most common surgical procedure in ophthalmology. Biometry data and accurate intraocular lens (IOL) calculations are very important in achieving the desired refractive outcomes. The aim of this study was to compare measurements using a new optical low coherence reflectometry (OLCR) biometer (OA-2000) and the gold standard partial coherence interferometry (PCI) optical biometer (IOLMaster 500). METHODS: Ocular biometry of cataract patients were measured by the OA-2000 and IOLMaster 500 to compare keratometry (K), axial length (AL), anterior chamber depth (ACD), white-to-white (WTW) diameter, and IOL power using the SRK/T formula...
2016: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/27805532/visual-rehabilitation-after-penetrating-keratoplasty
#2
Leyla Asena, Dilek D Altınörs
OBJECTIVES: Here, our aim was to report our treatment strategies and their results performed for visual rehabilitation after penetrating keratoplasty. MATERIALS AND METHODS: The medical records of 98 patients (54 male/44 female), with results from 104 eyes, who underwent penetrating keratoplasty between January 2013 and January 2015 at the Baskent University Faculty of Medicine, Department of Ophthalmology were reviewed. Patient age, indication for penetrating keratoplasty, interventions performed for visual rehabilitation, follow-up duration, topographic and refractive astigmatism at the end of follow-up, and final best corrected visual acuity results were recorded...
November 2016: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/27785598/pseudo-accommodation-in-non-amblyopic-children-after-bilateral-cataract-surgery-and-implantation-with-a-monofocal-intraocular-lens-prevalence-and-possible-mechanisms
#3
Charlotte Dénier, Pascal Dureau, Catherine Edelson, Amandine Barjol, Georges Caputo
BACKGROUND: Some pseudophakic patients implanted with a monofocal intraocular lens (IOL) have good near visual acuity (VA) with their distance correction. The objective was to evaluate the prevalence of pseudo-accommodation in children after bilateral cataract surgery, without amblyopia, and to define its mechanisms. METHODS: Observational study that took place in a pediatric ophthalmology department, Paris, France. A total of 68 eyes were included, 40 from 23 children and 28 from 14 adults, with a corrected distance VA above 20/25 and a normal near VA (20/25) with +3 addition...
October 26, 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/27729759/clinical-evaluation-of-functional-vision-of-1-5-diopters-near-addition-aspheric-rotational-asymmetric-multifocal-intraocular-lens
#4
Florian Tobias Alwin Kretz, Rahmin Khoramnia, Mary Safwat Attia, Michael Janusz Koss, Katharina Linz, Gerd Uwe Auffarth
PURPOSE: To evaluate postoperative outcomes and visual performance in intermediate distance after implantation of a +1.5 diopters (D) addition, aspheric, rotational asymmetric multifocal intraocular lens (MIOL). METHODS: Patients underwent bilateral cataract surgery with implantation of an aspheric, asymmetric MIOL with +1.5 D near addition. A complete ophthalmological examination was performed preoperatively and 3 months postoperatively. The main outcome measures were monocular and binocular uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), uncorrected intermediate visual acuity (UIVA), distance corrected intermediate visual acuity (DCIVA), uncorrected near visual acuity (UNVA) and distance corrected keratometry, and manifest refraction...
October 2016: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/27653607/floppy-iris-syndrome-and-cataract-surgery
#5
Jennifer M Enright, Humeyra Karacal, Linda M Tsai
PURPOSE OF REVIEW: Intraoperative floppy iris syndrome (IFIS) occurs in 2% of cataract surgeries and is associated with an increased risk of surgical complications. These complications can be avoided when high-risk patients are identified by preoperative screening and appropriate measures are used intraoperatively. The purpose of this article is to review emerging risk factors for IFIS and to summarize management strategies used in IFIS. RECENT FINDINGS: Although α1-antagonists in general, and tamsulosin (Flomax, Jalyn) in particular, have long been associated with IFIS, recent studies have more firmly demonstrated the elevated risk of IFIS attributed to tamsulosin...
January 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/27472214/paediatric-intraocular-lens-implants-accuracy-of-lens-power-calculations
#6
M K O'Gallagher, M A Lagan, C P Mulholland, M Parker, G McGinnity, E M McLoone
PurposeThis study aims to evaluate the accuracy of lens prediction formulae on a paediatric population.MethodsA retrospective case-note review was undertaken of patients under 8 years old who underwent cataract surgery with primary lens implantation in a regional referral centre for paediatric ophthalmology, excluding those whose procedure was secondary to trauma. Biometric and refractive data were analysed for 43 eyes, including prediction errors (PE). Statistical measures used included mean absolute error (MAE), median absolute error (MedAE), Student's t-test and Lin's correlation coefficient...
September 2016: Eye
https://www.readbyqxmd.com/read/27316273/national-survey-of-canadian-ophthalmology-residency-education
#7
Kim Le, Lulu Bursztyn, Daniel Rootman, Mona Harissi-Dagher
OBJECTIVE: To describe the current clinical, surgical, and other educational activities of Canadian ophthalmology residents. DESIGN: Cross-sectional study. PARTICIPANTS: Canadian ophthalmology residents postgraduate year (PGY) 2 to 5. METHODS: An online survey was sent to residents in 2011 and 2014. The data sets were merged and analyzed using descriptive statistics. RESULTS: The response rate was 41% with an equal distribution across sexes and PGY level...
June 2016: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/27215597/the-prevalence-of-visual-impairment-in-retirement-home-residents
#8
Luisa Thederan, Susanne Steinmetz, Sabine Kampmann, Anna-Maria Koob-Matthes, Franz Grehn, Thomas Klink
BACKGROUND: Elderly persons often have eye diseases causing either reversible or irreversible visual loss. The prevalence of such problems among retirement home residents is unknown. METHODS: 203 residents of retirement homes in and around Würzburg, Germany, were examined. Clinical histories were taken, including information on prior ophthalmological care, and ophthalmological examinations were performed, including visual acuity, slit-lamp examination of the anterior segment of the eye, fundoscopy (with optical coherence tomography), and measurement of the intraocular pressure...
May 6, 2016: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/27196952/prevalence-and-causes-of-visual-impairment-and-blindness-in-chinese-american-adults-the-chinese-american-eye-study
#9
Rohit Varma, Jeniffer S Kim, Bruce S Burkemper, Ge Wen, Mina Torres, Chunyi Hsu, Farzana Choudhury, Stanley P Azen, Roberta McKean-Cowdin
IMPORTANCE: Visual impairment (VI) and blindness continue to be major public health problems worldwide. Despite previously published studies on VI in Chinese and other racial/ethnic populations, there are no data specific to Chinese American adults. OBJECTIVES: To determine the age- and sex-specific prevalence and causes of VI and blindness in adult Chinese Americans and to compare the prevalence to other racial/ethnic groups. DESIGN, SETTING, AND PARTICIPANTS: In this population-based, cross-sectional study of 10 US Census tracts in the city of Monterey Park, California, 4582 Chinese American adults 50 years and older underwent complete ophthalmologic examinations, including measurement of presenting and best-corrected visual acuity (BCVA) for distance using the Early Treatment Diabetic Retinopathy Study protocol from February 1, 2010, through October 31, 2013...
July 1, 2016: JAMA Ophthalmology
https://www.readbyqxmd.com/read/27108843/ocular-findings-associated-with-chromosome-22q11-2-duplication
#10
Brian J Forbes, Donna M McDonald-McGinn, Georgia Wootton, Lindsay Dawson, Elaine Zackai, Gil Binenbaum
We describe the ocular features of the chromosome 22q11.2 duplication syndrome and provide ophthalmologic examination recommendations for affected patients. The medical records of 19 children with chromosome 22q11.2 duplication who had undergone complete ophthalmological examination, including dilated fundus examination and cycloplegic refraction, were studied retrospectively. Over half of the children with 22q11.2 duplication syndrome were found to have visually significant ocular abnormalities, including 6 with strabismus, 2 with moderately high astigmatism requiring glasses, 1 with unilateral congenital cataract requiring surgery, 1 with optic disk drusen, 1 with bilateral megalocornea with normal eye pressures, 1 with nystagmus that resolved spontaneously, and 1 with delayed visual maturation...
June 2016: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/27071364/-the-revised-dutch-college-of-general-practitioners-nhg-practice-guideline-on-visual-symptoms
#11
Wietze E Eizenga, Geert H Blom, Tjerk Wiersma
The 2001 NHG practice guideline on 'Refraction disorders' was revised for the second time in October 2015. The title has been changed to 'Visual symptoms', since besides refraction disorders other conditions such as glaucoma, macular degeneration, cataract and acute eye symptoms are also covered. The ophthalmologist is the specialist to whom GPs refer patients most often. Apart from the GP, ophthalmologist and youth health care physician, various other allied health professions are involved in eye healthcare...
2016: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/27059984/-possibilities-and-limitations-of-amblyopia-screening-with-auto-refractometers
#12
O Ehrt
Amblyopia is a frequent vision disorder with a prevalence of 3-6%, for which early treatment is more effective. More than half of the cases of amblyopia are due to refractive errors so that they are not obvious due to strabismus or other ocular abnormalities; therefore, examinations for early recognition are essential. Because no nationwide ophthalmological examination of infants with cycloplegia has been established in Germany, screening for refractive errors in the first 3 years of life could be very helpful...
April 2016: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/27039489/visual-acuity-outcomes-of-toric-lens-implantation-in-patients-undergoing-cataract-surgery-at-a-residency-training-program
#13
Meryl Sundy, Dustin McKnight, Craig Eck, Frank Rieger
Ophthalmology residents must become competent in the use of a variety of intraocular lenses (IOLs) and refractive technologies designed to reduce spectacle use after cataract surgery. Our study of visual acuity outcomes with toric IOLs at the Harry S. Truman Memorial Veterans' Hospital revealed that residents achieved an uncorrected visual acuity of 20/40 or better in 88% of the surgeries they performed, a rate comparable to that reported by other residency programs and by cataract surgeons.
January 2016: Missouri Medicine
https://www.readbyqxmd.com/read/27026443/evaluation-of-visual-outcomes-and-patient-satisfaction-after-implantation-of-a-diffractive-trifocal-intraocular-lens
#14
Javier Mendicute, Alexander Kapp, Pierre Lévy, Gero Krommes, Alfonso Arias-Puente, Mark Tomalla, Elena Barraquer, Pascal Rozot, Pierre Bouchut
PURPOSE: To evaluate clinical outcomes after the implantation of a diffractive trifocal intraocular lens (IOL). SETTING: Nine European ophthalmology centers. DESIGN: Prospective noncomparative interventional multicenter study. METHODS: The trifocal diffractive AT LISA tri 839MP IOL was implanted in eyes with bilateral cataract. Monocular and binocular visual performance was assessed as was the level of perceived photic phenomena, patient satisfaction, and spectacle dependence 1 month and 3 months postoperatively...
February 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/26948781/repeatability-and-agreement-in-optical-biometry-of-a-new-swept-source-optical-coherence-tomography-based-biometer-versus-partial-coherence-interferometry-and-optical-low-coherence-reflectometry
#15
Kathleen S Kunert, Monika Peter, Marcus Blum, Wolfgang Haigis, Walter Sekundo, Juliane Schütze, Tobias Büehren
PURPOSE: To estimate the repeatability of biometric parameters obtained with a new swept-source biometer and to compare the agreement with that of partial coherence interferometry (PCI) and optical low-coherence reflectometry (OLCR). SETTING: Department of Ophthalmology, Helios Hospital Erfurt, Erfurt, Julius-Maximilians University, Würzburg, and Philipps University, Marburg, Germany. DESIGN: Prospective comparative multicenter clinical study...
January 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/26939111/the-global-issue-of-vision-loss-and-what-we-can-do-about-it-jos%C3%A3-rizal-medal-2015
#16
Hugh R Taylor
The prevalence of blindness increases rapidly with increasing age. Globally, there are some 32 million people who are blind and 191 million with poor vision. The leading cause of blindness worldwide is cataract, whereas uncorrected refractive error causes most poor vision. The rates of blindness from diabetes and macular degeneration are rapidly increasing, and age-related macular degeneration is the leading cause of blindness in developed countries. Three quarters of this blindness can be prevented or treated, and although the absolute number of blind people increased slightly between 1990 and 2010, very importantly, the prevalence of blindness has been halved as eye care programs and particularly cataract services have developed...
March 2016: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/26855559/astigmatism-management-in-cataract-surgery-with-precizon-%C3%A2-toric-intraocular-lens-a-prospective-study
#17
Carolina Vale, Carlos Menezes, J Firmino-Machado, Pedro Rodrigues, Miguel Lume, Paula Tenedório, Pedro Menéres, Maria do Céu Brochado
PURPOSE: The purpose of this study was to evaluate the visual and refractive outcomes and rotational stability of the new aspheric Precizon(®) toric intraocular lens (IOL) for the correction of corneal astigmatism in cataract surgery. SETTING: Department of Ophthalmology, Hospital Geral de Santo António - Centro Hospitalar do Porto, EPE and Hospital de Pedro Hispano, Matosinhos, Portugal. DESIGN: This was a prospective clinical study. PATIENTS AND METHODS: A total of 40 eyes of 27 patients with corneal astigmatism greater than 1...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/26816296/ocular-findings-of-myotonic-dystrophy-type-1-in-the-korean-population
#18
Se Hyun Choi, Hee Kyung Yang, Jeong-Min Hwang, Kyung Seok Park
PURPOSE: To investigate ocular findings in a Korean population with myotonic dystrophy type 1 (DM1). METHODS: A total of 24 Korean patients with DM1, ranging in age from 4 to 71 years, were examined over a period from June 2004 to May 2014. Ophthalmologic examinations including visual acuity assessment, slit-lamp biomicroscopy, ocular motility, cycloplegic refraction, and fundus examination were performed in all patients, and brain magnetic resonance (MR) imaging was performed in 15 patients...
June 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/26796453/five-year-functional-outcomes-and-vault-of-20-diopter-myopic-phakic-intraocular-lens-implantation
#19
Carlos Lisa, Begoña Baamonde, Cari Pérez-Vives, Robert Montés-Micó, José F Alfonso
PURPOSE: To evaluate refractive and visual outcomes and complications associated with phakic intraocular lens (pIOL) implantation to correct high myopia. SETTINGS: Fernández-Vega Ophthalmological Institute, Oviedo, Spain. DESIGN: Retrospective observational case series. METHODS: Uncorrected distance visual acuity (UDVA) and corrected distance visual acuity (CDVA), refraction, vault, and adverse effects were evaluated after 5 years with Visian ICMV4 pIOL...
December 2015: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/26796449/randomized-controlled-clinical-trial-to-evaluate-different-intraocular-lenses-for-the-surgical-compensation-of-low-to-moderate-to-high-regular-corneal-astigmatism-during-cataract-surgery
#20
Martin Emesz, Alois K Dexl, Eva M Krall, Alexander Bachernegg, Sarah Moussa, Gerlinde Jell, Günther Grabner, Eva-Maria Arlt
PURPOSE: To evaluate vector analysis, rotational stability, and visual outcomes after implantation of toric IOLs with low (<2.25 diopter [D]) toric values (Acrysof IQ SN6AT3 or SN6AT4) and moderate-to-high toric (3.00 D to 6.00 D) values (Acrysof IQ SN6AT5, SN6AT6, SN6AT7, SN6AT8, or SN6AT9) versus after implantation of a nontoric IOL (Acrysof SN60WF) in eyes with regular topographic corneal astigmatism. SETTING: Department of Ophthalmology, Paracelsus Medical University Salzburg, Salzburg, Austria...
December 2015: Journal of Cataract and Refractive Surgery
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