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cataract and refractive ophthalmology

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https://www.readbyqxmd.com/read/29208808/intraocular-lens-calculations-in-atypical-eyes
#1
REVIEW
Aazim A Siddiqui, Uday Devgan
Cataract surgery is the most performed surgical procedure in the field of ophthalmology. The process of intraocular lens (IOL) calculations is a critical step to achieving successful outcomes. Many IOL formulae exist to guide surgeons through the difficult process of picking the most appropriate lens to achieve a certain target refraction. However, these formulae reach within 0.50 diopters of the target refraction only 75% of the time, leaving 25% of the eyes with a significant refractive surprise. A literature review was performed to investigate all the relevant published material on the history, progress, and recent advancements of IOL calculations...
December 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29166895/retrospective-data-on-causes-of-childhood-vision-impairment-in-eritrea
#2
Rajendra Gyawali, Bharat Kumar Bhayal, Rabindra Adhikary, Arjun Shrestha, Rabindra Prasad Sah
BACKGROUND: Proper information on causes of childhood vision loss is essential in developing appropriate strategies and programs to address such causes. This study aimed at identifying the causes of vision loss in children attending the national referral eye hospital with the only pediatric ophthalmology service in Eritrea. METHODS: A retrospective data review was conducted for all the children (< 16 years of age) who attended Berhan Aiyni National Referral Eye Hospital in five years period from January 2011 to December 2015...
November 22, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29093540/sustained-accuracy-improvement-in-intraocular-lens-power-calculation-with-the-application-of-quality-control-circle
#3
Lei Lin, Pingjun Chang, Jialu Xie, Zhangliang Li, Hongfang Zhang, Fan Lu, Yun-E Zhao
Accurate intraocular lens (IOL) power calculation is always a challenge in ophthalmology, and unoptimized process may lead to inaccurate refractive outcomes. Quality control circle (QCC) has shown its success in many fields as a process management tool. However, its efficacy in ophthalmology remains unclear. Here we utilized the QCC method to optimize the process and evaluate its efficacy in improving the accuracy of IOL power calculation. After the QCC application, the percentage of eyes with achieved refractive outcomes within 0...
November 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29063356/changing-trends-in-postoperative-cataract-care-impact-of-electronic-patient-records-in-optometrist-delivered-shared-care
#4
A M Mongan, F Kerins, B McKenna, S M Quinn, P Mullaney
BACKGROUND: This study evaluates a community optometrist-delivered postoperative care scheme in patients discharged from the hospital ophthalmology department following uncomplicated cataract surgery. AIM: The aim of this study is to assess the efficacy of electronic patient records (EPR) in facilitating co-managed cataract care. METHODS: We performed a retrospective analysis of a prospectively maintained Medisoft EPR database of postoperative cataract review data at a single centre, Sligo University Hospital (SUH), which serves a large and predominantly rural catchment area...
October 23, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28991611/effect-of-fixation-stability-during-biometry-measurements-on-refractive-prediction-accuracy-in-highly-myopic-eyes
#5
Xiangjia Zhu, Wenwen He, Yu Du, Yi Lu
PURPOSE: To assess the effect of preoperative biometry fixation stability on postoperative refractive errors in highly myopic cataractous eyes. SETTING: Eye and ENT Hospital of Fudan University, Shanghai, China. DESIGN: Prospective cohort study. METHODS: Eyes of highly myopic patients and emmetropic controls were included. Routine ophthalmologic examinations and measurement of fixation stability in the 63% and 95% bivariate contour ellipse areas (BCEAs) were conducted preoperatively...
September 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28969173/pattern-of-ocular-morbidity-in-the-elderly-population-of-northern-india
#6
Vibha Florence Baldev, Rupali Chopra, Nitin Batra, Shavinder Singh
INTRODUCTION: The frequency of eye diseases has been suggested to start increasing around 40 years of age, with an even steeper increase beginning around 60 years of age. Health promotions and curative and rehabilitative services for the visually impaired elderly population should therefore be a priority in the coming years especially in low and middle income countries. AIM: To examine the changing pattern of ocular morbidity in the elderly population of Northern India and to determine the socioeconomic status in relation to ocular morbidities...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28831559/-ophthalmological-health-care-of-the-institutionalized-elderly-the-ovis-study
#7
P P Fang, A Schnetzer, D G Kupitz, A P Göbel, T Kohnen, T Reinhard, B Lorenz, H Hoerauf, L Wagenfeld, G Auffarth, F Schaub, H Thieme, B von Livonius, F Alten, A Robering, C Brandl, F Ziemssen, F Krummenauer, F G Holz, R P Finger
BACKGROUND: Due to demographic change and societal transformation the number of elderly persons living in retirement homes is growing in Germany. Access to health care is more complicated in the setting of nursing homes. Different regional studies suggest unmet ophthalmological health care needs in institutionalized elderly people. This study assessed the current ophthalmological health care structure and supply status in nursing homes in Germany. METHODS: This prospective, multicenter cross-sectional study was conducted by 14 study centers in Germany...
September 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28606268/-clinical-observation-on-monovision-of-cataract-surgery-with-different-near-addition
#8
J Mu, Y Z Li, Q Wu, L Yan, H Chen
Objective: To observe the influence on spectacle independence, satisfaction and visual function after cataract surgery monovision with different ADD. Methods: Prospective clinical study. All patients were collected from the department of ophthalmology, Shanghai JiaoTong University Affiliated Sixth People's Hospital who were diagnosed as bilateral cataract from Oct. 2013 to Mar. 2015. This study comprised 64 cases (128 eyes). All consecutive patients scheduled to undergo bilateral cataract phacoemulsification and implantation of a monofocal AcrySof IQ IOL...
June 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28602323/bifocal-nondiffractive-intraocular-lens-for%C3%A2-enhanced-depth-of-focus-in-correcting-presbyopia-clinical-evaluation
#9
Efstathios Vounotrypidis, Raphael Diener, Christian Wertheimer, Thomas Kreutzer, Armin Wolf, Siegfried Priglinger, Wolfgang J Mayer
PURPOSE: To assess the clinical outcomes and patient satisfaction after bilateral cataract surgery with implantation of a bifocal refractive enhanced depth of focus intraocular lens (IOL) with a low near addition (add). SETTING: Department of Ophthalmology, Ludwig-Maximilians-University Munich, Munich, Germany. DESIGN: Prospective longitudinal case series. METHODS: Eyes with bilateral age-related cataract and corneal astigmatism of less than 1...
May 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28410714/accuracy-of-3-new-methods-for-intraocular-lens-power-selection
#10
Jack X Kane, Anton Van Heerden, Alp Atik, Constantinos Petsoglou
PURPOSE: To evaluate the accuracy of 3 new methods for intraocular lens (IOL) power selection (Hill-Radial Basis Function [Hill-RBF] method, FullMonte method, and the Ladas Super Formula) compared with that of the Holladay 1 and Barrett Universal II formulas. SETTING: Ophthalmology Department, Alfred Hospital, Melbourne, Australia. DESIGN: Retrospective case series. METHODS: Patients who had uneventful cataract surgery with insertion of the Acrysof IQ SN60WF IOL over 5 years were included in the study...
March 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28366374/sequential-intrastromal-corneal-ring-segment-and-monofocal-intraocular-lens-implantation-for-keratoconus-and-cataract-long-term-follow-up
#11
José F Alfonso, Carlos Lisa, Luis Fernández-Vega Cueto, Arancha Poo-López, David Madrid-Costa, Luis Fernández-Vega
PURPOSE: To evaluate the efficacy, safety, predictability, and stability of sequential Ferrara intrastromal corneal ring segment (ICRS) and intraocular lens (IOL) implantation in patients with keratoconus and cataract. SETTING: Fernández-Vega Ophthalmological Institute, Oviedo, Spain. DESIGN: Retrospective case series. METHODS: This study comprised patients with keratoconus and cataract who had ICRS implantation followed 6 months later by IOL implantation...
February 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28366372/rotational-stability-of-2-intraocular-lenses-with-an-identical-design-and-different-materials
#12
Petra Draschl, Nino Hirnschall, Nikolaus Luft, Sandra Schuschitz, Jörg Wiesinger, Karl Rigal, Oliver Findl
PURPOSE: To evaluate the rotational stability of nontoric intraocular lenses (IOLs) of the same design and different materials. SETTING: Vienna Institute for Research in Ocular Surgery, Department of Ophthalmology, Hanusch Hospital, Vienna, Austria. DESIGN: Prospective randomized case series. METHODS: This study included cataract patients with a corneal astigmatism of less than 1.75 diopters measured with the IOLMaster 500...
February 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28366366/clinical-and-biometric-determinants-of-actual-lens-position-after-cataract-surgery
#13
Julien Plat, Didier Hoa, Frederic Mura, Timothe Busetto, Christelle Schneider, Arnaud Payerols, Max Villain, Vincent Daien
PURPOSE: To evaluate the preoperative clinical and biometric determinants associated with the actual lens position after cataract surgery. SETTING: Department of Ophthalmology, University Hospital of Montpellier, France. DESIGN: Prospective longitudinal cohort study. METHODS: The data collected included clinical factors (age, sex, history of vitrectomy) and biometry factors (axial length [AL], anterior chamber depth [ACD], lens thickness, white-to-white [WTW] distance) that might affect actual lens position...
February 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28003784/pros-and-cons-of-immediately-sequential-bilateral-cataract-surgery-isbcs
#14
REVIEW
Andrzej Grzybowski, Weronika Wasinska-Borowiec, Charles Claoué
Immediately sequential bilateral cataract surgery (ISBCS) is currently a "hot topic" in ophthalmology. There are well-documented advantages in terms of quicker visual rehabilitation and reduced costs. The risk of bilateral simultaneous endophthalmitis and bilateral blindness is now recognized to be minuscule with the advent of intracameral antibiotics and modern management of endophthalmitis. Refractive surprises are rare for normal eyes and with the use of optical biometry. Where a general anesthetic is indicated for cataract surgery, the risk of death from a second anesthetic is much higher than the risk of blindness...
October 2016: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/27930795/optical-measurement-of-straylight-in-eyes-with-cataract
#15
Onurcan Sahin, Alexandros Pennos, Harilaos Ginis, Lucia Hervella, Eloy A Villegas, Belen Cañizares, Jose Maria Marin, Ioannis Pallikaris, Pablo Artal
PURPOSE: To measure straylight in a cohort of patients with cataract using a novel optical instrument and to correlate optical straylight values with clinical grade of cataracts and psychophysical straylight values. METHODS: Measurements were performed on 53 eyes of 44 patients with cataract admitted to the ophthalmology service of the university hospital in Murcia, Spain, and 9 young volunteers with no known ophthalmic pathology. Lens opacities were classified according to the Lens Opacities Classification System Ill (LOCS III) under slit-lamp examination...
December 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27833928/comparison-of-a-new-optical-biometer-and-a-standard-biometer-in-cataract-patients
#16
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
#17
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
#18
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...
February 2017: 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
#19
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
#20
REVIEW
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
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