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Intraocular lens

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https://www.readbyqxmd.com/read/28730110/incidence-of-cystoid-macular-edema-after-descemet-s-stripping-automated-endothelial-keratoplasty
#1
Eduard Pedemonte-Sarrias, Toni Salvador Playà, Irene Sassot Cladera, Oscar Gris, Joan Ribas Martínez, José García-Arumí, Núria Giménez
AIM: To determine the incidence of cystoid macular edema (CME) after Descemet's stripping automated endothelial keratoplasty (DSAEK). METHODS: This study included all consecutive patients operated in a Spanish tertiary reference hospital over a period of four years. A total of 55 eyes from 47 patients matched the selection criteria. CME was diagnosed clinically at the slit-lamp and confirmed by optical coherence tomography. RESULTS: Six cases of CME were diagnosed postoperatively, which represented an incidence of 11%...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28730096/retinal-detachment-repair-through-multifocal-intraocular-lens-overcoming-visualization-challenge-of-the-peripheral-retina
#2
Amir Hadayer, Denis Jusufbegovic, Shlomit Schaal
No abstract text is available yet for this article.
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28730082/evaluation-of-visual-quality-of-spherical-and-aspherical-intraocular-lenses-by-optical-quality-analysis-system
#3
Yan Chen, Xue Wang, Chuan-Di Zhou, Qiang Wu
AIM: To evaluate the impact of spherical and aspherical intraocular lenses on the postoperative visual quality of age-related cataract patients using Optical Quality Analysis System (OQAS). METHODS: Seventy-four eyes with age-related cataracts were randomly divided into spherical and aspherical lens implantation groups. Best-corrected visual acuity (BCVA) was measured preoperatively, one day, one week, two weeks, one month and two months after surgery. A biometric systems analysis using the OQAS objective scattering index (OSI) was performed...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28728285/-prevalence-and-surgery-status-of-cataract-among-adults-aged-60-years-or-above-in-two-villages-of-nantong
#4
J Zhou, Y Yuan, X Zhang, M Yang, H J Guan
Objective: To assess the prevalence, surgical coverage rate and social burden rate of cataract blindness among adults aged ≥60 years in the suburban population of Nantong, Jiangsu, China. Methods: It was a population-based cross-section study. A census with individuals aged ≥60 years was conducted in two villages of the suburb area in Nantong from June to August, 2008. A total of 1 305 individuals received visual acuity and eye examinations. Lens and cataract operative status were evaluated by slit-lamp biomicroscopy...
July 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28728174/a-global-view-on-output-and-outcomes-of-cataract-surgery-with-national-indices-of-socioeconomic-development
#5
Wei Wang, William Yan, Andreas Müller, Mingguang He
Purpose: Cataract blindness accounts for a substantial proportion of blindness worldwide. Understanding the correlations between national levels of socioeconomic development with the quantity and quality of cataract surgery may provide insight for the prioritization and resource allocation for blindness prevention programs. Methods: The relationships between human development index (HDI), gross domestic product (GDP) per capita, and cataract surgical coverage (CSC) and visual outcome of cataract surgery were examined in a multinational study utilizing secondary data from the repository for Rapid Assessment of Avoidable Blindness (RAAB), World Health Organization, Global Burden of Disease, United Nations, and the World Bank...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28726357/the-complexities-of-negative-dysphotopsia
#6
Ivayla I Geneva, Bonnie A Henderson
The appearance of a dark shadow in the temporal periphery, otherwise known as negative dysphotopsia, continues to be a problem for some patients after routine uncomplicated cataract surgery. Etiologies include type and design of intraocular lens (IOL), anatomical features and dimensions of the eye, pupil size, angle kappa, relationship of the optic to the anterior capsule, and the position of the optic/haptic junction of the IOL. Although the primary etiology remains controversial, it is clear that the cause is multifactorial...
July 18, 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28726356/intrascleral-iol-fixation
#7
Soonsan Jacob
Intrascleral sutureless intraocular lens (IOL) fixation utilizes direct haptic fixation within the sclera in eyes with deficient capsular support. This has advantages of long-term stability, good control of tilt and decentration, and lesser pseudophakodonesis. This review summarizes various techniques for intrascleral haptic fixation, results, complications, adaptations in special situations, modifications of the technique, combination surgeries, and intrascleral capsular bag fixation techniques (glued capsular hook)...
July 18, 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28726341/the-wandering-intraocular-lens-an-unusual-suspect
#8
Y Eve Hsing, Anil Sharma
No abstract text is available yet for this article.
July 20, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28724815/efficacy-and-safety-of-intraoperative-intracameral-mydriasis-in-manual-small-incision-cataract-surgery-a-randomized-controlled-trial
#9
K Ajay, Srinivasan Saranya, Divya Dabir Sundaresh, H R Hithashree, B C Hemalatha, Malavika Krishnaswamy, Sathyendranath B Shetty
PURPOSE: The purpose of this study is to assess the efficacy and safety of intracameral mydriatic solution, as compared to preoperative topical mydriatics, in patients undergoing manual small incision cataract surgery (MSICS) under peribulbar anesthesia. To assess the sustainability of intracameral mydriasis in MSICS by monitoring pupil size at specific junctures during the surgery. METHODS: This trial recruited 127 patients, who underwent MSICS under peribulbar block...
July 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28723847/blindness-related-to-presumed-retinal-toxicity-after-using-perfluorocarbon-liquid-during-vitreoretinal-surgery
#10
Silvia Méndez-Martínez, Pilar Calvo, Nelson Arturo Rodriguez-Marco, Fernando Faus, Emilio Abecia, Luis Pablo
PURPOSE: To describe the presumed retinal toxicity after using specific batches of perfluorocarbon liquid ALA OCTA (Alamedics, Dornstadt, Germany) in pars plana vitrectomy. METHODS: This is an observational retrospective consecutive case series analyses of patients operated on pars plana vitrectomy for retinal detachment or intraocular lens subluxation, using the 150141 or 200114 batches of perfluorocarbon liquid ALA OCTA as assistance during the surgery in a single center...
July 18, 2017: Retina
https://www.readbyqxmd.com/read/28723783/novel-surgical-management-of-cyclodialysis-cleft-via-anterior-chamber-perfusion-case-report
#11
Jinfei Tang, Ergang Du, Jie Wang
RATIONALE: Cyclodialysis cleft is a relatively rare but severe condition with persistent ocular hypotony, which can cause morphologic changes and visual loss. Here we report a case of a traumatic cyclodialysis cleft that was successfully managed with direct cyclopexy via anterior chamber perfusion. During the operation, if there is aqueous humor flowing out of the deep scleral incision, the cleft is not closed, and surgery should continue until there is no aqueous outflow. PATIENT CONCERNS: A 66-year-old man was treated for severe blunt ocular trauma of the left eye and a resultant cyclodialysis cleft, lens subluxation, choroidal detachment and a cataract...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28718041/quality-of-vision-patient-satisfaction-and-long-term-visual-function-after-bilateral-implantation-of-a-low-addition-multifocal-intraocular-lens
#12
Emilio Pedrotti, Rodolfo Mastropasqua, Jacopo Bonetto, Christian Demasi, Francesco Aiello, Carlo Nucci, Cesare Mariotti, Giorgio Marchini
PURPOSE: The aim of the current study was to compare the quality of vision, contrast sensitivity and patient satisfaction with a biaspheric, segmented, rotationally asymmetric IOL (Lentis Comfort LS-313 MF 15-Oculentis GmbH, Berlin, Germany) as opposed to those of a monofocal IOL. METHODS: This prospective single-blind comparative study included two groups of patients affected by bilateral senile cataract who underwent lens extraction and IOL implantation. The first group received a bilateral implantation of a monofocal IOL, and the second group received a bilateral implantation of the Comfort IOL...
July 17, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28717577/temporal-multiplexing-to-simulate-multifocal-intraocular-lenses-theoretical-considerations
#13
Vyas Akondi, Carlos Dorronsoro, Enrique Gambra, Susana Marcos
Fast tunable lenses allow an effective design of a portable simultaneous vision simulator (SimVis) of multifocal corrections. A novel method of evaluating the temporal profile of a tunable lens in simulating different multifocal intraocular lenses (M-IOLs) is presented. The proposed method involves the characteristic fitting of the through-focus (TF) optical quality of the multifocal component of a given M-IOL to a linear combination of TF optical quality of monofocal lenses viable with a tunable lens. Three different types of M-IOL designs are tested, namely: segmented refractive, diffractive and refractive extended depth of focus...
July 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28715586/iris-claw-intraocular-lens-and-scleral-fixated-posterior-chamber-intraocular-lens-implantations-in-correcting-aphakia-a-meta-analysis
#14
Wu Jing, Liang Guanlu, Zheng Qianyin, Li Shuyi, He Fengying, Liu Jian, Xu Wen
Purpose: A meta-analysis to compare iris-claw intraocular lens (IC-IOL) and scleral-fixated posterior chamber intraocular lens (SF-PCIOL) implantations in correcting aphakia without sufficient capsular support. Methods: Eligible studies were collected through PubMed, Web of Science, Embase, and the Cochrane library. The pooled relative risks (RR), pooled standardized mean difference (SMD), and their 95% confidence interval of the eligible studies were then calculated...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28714828/reducing-wrong-intraocular-lens-implants-in-cataract-surgery
#15
Huey Peng Loh, Dirk Frans de Korne, Soon Phaik Chee, Ranjana Mathur
Purpose Wrong lens implants have been associated with the highest frequency of medical errors in cataract surgery. The purpose of this paper is to explore the use of the Systems Engineering Initiative for Patient Safety (SEIPS) framework to sustainably reduce wrong intraocular lens (IOL) implants in cataract surgery. Design/methodology/approach In this mixed-methods study, the SEIPS framework was used to analyse a series of (near) misses of IOL implants in a national tertiary specialty hospital in Singapore...
July 10, 2017: International Journal of Health Care Quality Assurance
https://www.readbyqxmd.com/read/28714205/photothermal-ring-integrated-intraocular-lens-for-high-efficient-eye-disease-treatment
#16
Yao-Xin Lin, Xue-Feng Hu, Yang Zhao, Yu-Juan Gao, Chao Yang, Sheng-Lin Qiao, Yi Wang, Pei-Pei Yang, Jiao Yan, Xin-Ce Sui, Zeng-Ying Qiao, Li-Li Li, Jiang-Bing Xie, Si-Quan Zhu, Xiao-Chun Wu, Yongsheng Li, Lei Wang, Hao Wang
Posterior capsule opacification (PCO) is the most common complication after cataract surgery. So far, the only method for PCO treatment is the precisely focused laser surgery. However, it causes severe complications such as physical damages and neuron impairments. Here, a nanostructured photothermal ring integrated intraocular lens (Nano-IOLs) is reported, in which the rim of commercially available IOLs (C-IOLs) is decorated with silica coated Au nanorods (Au@SiO2 ), for high-efficient prevention of PCO after cataract surgery...
July 17, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28706770/open-globe-injury-with-an-interesting-intra-ocular-foreign-body
#17
Ekjyot Gill, Matthew Shulman, Sid Schechet, Lawson Grumbine
Introduction: Cases of penetrating ocular trauma due to osseous material are limited, so reported incidents are valuable in determining outcomes and proper treatment courses. Case description: We report a case of an open globe injury of the left eye with an intraocular foreign body occurring after a firework exploded in the hand of a 22-year-old man. The patient presented with light perception vision in the injured eye with a full-thickness limbal laceration and dense hyphema obscuring fundoscopy. CT scan revealed a hyperdense foreign body juxtaposed to the lens...
2017: GMS Ophthalmology Cases
https://www.readbyqxmd.com/read/28703800/killing-two-birds-with-one-stone-dual-blockade-of-integrin-and-fgf-signaling-through-targeting-syndecan-4-in-postoperative-capsular-opacification
#18
Yingyan Qin, Yi Zhu, Furong Luo, Chuan Chen, Xiaoyun Chen, Mingxing Wu
The most common complication after cataract surgery is postoperative capsular opacification, which includes anterior capsular opacification (ACO) and posterior capsular opacification (PCO). Increased adhesion of lens epithelial cells (LECs) to the intraocular lens material surface promotes ACO formation, whereas proliferation and migration of LECs to the posterior capsule lead to the development of PCO. Cell adhesion is mainly mediated by the binding of integrin to extracellular matrix proteins, while cell proliferation and migration are regulated by fibroblast growth factor (FGF)...
July 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28700420/comparison-of-2d-and-3d-video-displays-for-teaching-vitreoretinal-surgery
#19
Nisarg Chhaya, Omar Helmy, Niloofar Piri, Agustina Palacio, Shlomit Schaal
PURPOSE: To compare medical students' learning uptake and understanding of vitreoretinal surgeries by watching either 2D or 3D video recordings. METHODS: Three vitreoretinal procedures (tractional retinal detachment, exposed scleral buckle removal, and four-point scleral fixation of an intraocular lens [TSS]) were recorded simultaneously with a conventional recorder for two-dimensional viewing and a VERION 3D HD system using Sony HVO-1000MD for three-dimensional viewing...
July 11, 2017: Retina
https://www.readbyqxmd.com/read/28696826/a-comparative-study-on-surgical-outcomes-of-glued-intraocular-lens-and-sutured-scleral-fixated-intraocular-lens-implantation
#20
Divya Balakrishnan, Vinod Mukundaprasad, Subhadra Jalali, Rajeev Reddy Pappuru
PURPOSE: To compare the surgical outcomes of glued intraocular lens (GIOL) and sutured scleral fixated intraocular lens (SFIOL) implantation. METHODS: A retrospective, interventional case series of 60 patients (68 eyes) who underwent GIOL (28 eyes: 11 primary; 17 secondary) and SFIOL (40 eyes: 24 primary; 16 secondary) in a tertiary eye care institute was done. The main outcome measures were complications, time taken for surgery, postoperative refractive outcomes, and final best-corrected visual acuity (BCVA)...
July 11, 2017: Seminars in Ophthalmology
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