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Cataract, intraocular lens

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https://www.readbyqxmd.com/read/28730082/evaluation-of-visual-quality-of-spherical-and-aspherical-intraocular-lenses-by-optical-quality-analysis-system
#1
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
#2
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
#3
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
#4
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/28724815/efficacy-and-safety-of-intraoperative-intracameral-mydriasis-in-manual-small-incision-cataract-surgery-a-randomized-controlled-trial
#5
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/28723783/novel-surgical-management-of-cyclodialysis-cleft-via-anterior-chamber-perfusion-case-report
#6
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
#7
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/28714828/reducing-wrong-intraocular-lens-implants-in-cataract-surgery
#8
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
#9
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/28703800/killing-two-birds-with-one-stone-dual-blockade-of-integrin-and-fgf-signaling-through-targeting-syndecan-4-in-postoperative-capsular-opacification
#10
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/28691893/sleep-and-mood-changes-in-advanced-age-after-blue-blocking-yellow-intra-ocular-lens-iols-implantation-during-cataract-surgical-treatment-a-randomized-controlled-trial
#11
Olivia Zambrowski, Elsa Tavernier, Eric H Souied, Thomas Desmidt, Amélie Le Gouge, David Bellicaud, Béatrice Cochener, Nadège Limousin, Caroline Hommet, Elisabeth Autret-Leca, Pierre-Jean Pisella, Vincent Camus
OBJECTIVES: Both advanced age and depression are characterized by changes in sleep patterns. Light exposure is one of the main synchronizers of circadian cycles and influences sleep by inhibiting melatonin secretion, which is mostly sensitive to light of low wavelengths (blue). Blue-blocking (yellow) intraocular lenses (IOLs) have supplanted the usual UV-blocking (clear) IOLs during cataract surgery to prevent age-related macular degeneration, however, the impact of yellow IOLs on sleep and mood is unclear...
July 10, 2017: Aging & Mental Health
https://www.readbyqxmd.com/read/28690536/catastrophic-thermal-corneoscleral-injury-treated-with-transplantation-of-donor-scleral-graft
#12
Satoru Kase, Takeshi Ohguchi, Susumu Ishida
BACKGROUND: The aim of this study is to report a patient with senile cataract developing severe thermal corneoscleral injury during phacoemulsification, which was treated with a donor scleral graft. CASE: Severe thermal corneoscleral injury occurred during phacoemulsification in the right eye of a 74-year-old male. His medical history was prostate hypertrophy. Visual acuity was hand motion and the intraocular pressure was 3 mm Hg OD. There was heavy corneal stromal opacity with intraocular fluid leakage...
May 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28682911/comparison-of-nd-yag-capsulotomy-rate-between-1-piece-and-3-piece-acrylic-intraocular-lenses-a-strobe-compliant-article
#13
Sun Young Kim, Young Kwon Chung, Hye Young Shin, Mee Yon Lee, Young-Chun Lee, Su-Young Kim
The aim of the study is to compare Nd:YAG capsulotomy rate between acrylic 1- and 3-piece intraocular lenses. Among 924 eyes of 762 patients who received cataract surgery, we selected the 303 patients (404 eyes) implanted with an SN60WF 1-piece intraocular lens (Alcon, Fort Worth, TX) or a YA-60BBR 3-piece intraocular lens (Hoya Co., Tokyo, Japan). For intraindividual comparison, we enrolled the 17 patients implanted with an SN60WF in 1 eye and a YA-60BBR in the contralateral eye. We compared Nd:YAG capsulotomy rate between acrylic 1- and 3-piece intraocular lenses 24 months after the operation...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28681904/bean-shaped-ring-segments-as-a-capsule-enhancement-tool-in-complex-bag-in-the-lens-intraocular-lens-implantation
#14
Ate Altenburg, Sorcha S Ní Dhubhghaill, Marie-José Tassignon
PURPOSE: To describe the outcome of a novel capsular or sulcular device to support the bag-in-the-lens (BIL) implant in cases of capsular or zonular instability. Bean-shaped ring segments or 'beans' (Morcher GmbH, Stuttgart, Germany) are designed to fit the groove of the BIL and may be placed in either the capsule or the ciliary sulcus in cataract cases with loose zonules or unstable capsule. METHODS: This was a retrospective single center observational study of all consecutive cases of bean implantation between May 2011 and April 2015...
July 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28676040/congenital-aniridia-with-cataract-case-series
#15
Jin Da Wang, Jing Shang Zhang, Ying Xiong, Jing Li, Xiao Xia Li, Xue Liu, Jing Zhao, Frank F Tsai, Jhanji Vishal, Qi Sheng You, Yao Huang, Xiu Hua Wan
BACKGROUND: This study evaluates patients with congenital aniridia and cataract who underwent phacoemulsification, capsular tension ring placement, and foldable intraocular lens implantation. METHODS: In this prospective case series, 10 patients (17 eyes) underwent cataract surgery via a 3.2 mm clear corneal incision. A continuous circular capsulorhexis with <6 mm diameter was employed. A capsular tension ring and HOYA yellow foldable posterior chamber intraocular lens was implanted...
July 4, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28671403/refractive-eye-surgery-helping-patients-make-informed-decisions-about-lasik
#16
John M Wilkinson, Elizabeth W Cozine, Amir R Kahn
A variety of refractive surgery techniques, which reshape the corneal stroma using laser energy, have been marketed as simple and safe alternatives to glasses or contact lenses. Laser-assisted in-situ keratomileusis (LASIK) is the most common of these procedures. Although there are few high-quality prospective studies of long-term outcomes, complications, or stability for refractive surgery procedures, there is at least general agreement that more than 90% of appropriately selected patients achieve excellent uncorrected distance vision...
May 15, 2017: American Family Physician
https://www.readbyqxmd.com/read/28666434/reversible-opacification-of-hydrophobic-acrylic-intraocular-lens-two-cases-report
#17
Dong Ju Kim, Roy S Chuck, Jimmy K Lee, Choul Yong Park
BACKGROUND: The opacification of the intraocular lens (IOL) can cause significant visual deterioration. It is known that opacity of hydrophobic acrylic IOLs is rare. We report 2 cases of reversible optic opacification of hydrophobic acrylic intraocular lenses (Tecnis ZCB00, Abbott), observed within 2 months after uneventful cataract surgery. CASE PRESENTATION: Case 1: Uneventful cataract surgery was performed on the left eye of an 86-year-old diabetic man with chronic open-angle glaucoma...
June 30, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28665780/viscoless-manual-small-incision-cataract-surgery-with-trabeculectomy
#18
Aparna Rao, Debananda Padhy, Gopinath Das, Sarada Sarangi
PURPOSE: To compare the efficacy of combined manual small incision cataract and glaucoma surgery with anterior chamber maintainer (ACM) alone versus that with intraoperative viscoelastics. METHODS: Hospital electronic medical records of patients who underwent small incision cataract and trabeculectomy and intraocular lens implantation without Mitomycin-C from 2014 to 2016 were identified from the hospital operation theater database for this retrospective, hospital-based comparative study...
June 30, 2017: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/28665478/phacoemulsification-outcomes-with-different-illumination-techniques
#19
Juan B Yepez, Felipe A Murati, Félix García, Vivian Calderon, Jazmin Cedeño de Yepez, J Fernando Arévalo
PURPOSE: To compare surgeon experience and the outcomes of phacoemulsification using 2 different illumination techniques for cataract extraction. METHODS: A prospective interventional case series was performed on 20 consecutive patients (20 eyes) with senile cataract who underwent phacoemulsification enhanced with a 23-G endoillumination probe. The main outcome measures were the surgeon's perception of depth of field and quality of visibility of intraocular structures, ease of performance of the surgical procedure, effectiveness, and complications related to the procedure...
June 26, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28665477/visual-acuity-and-image-quality-in-5-diffractive-intraocular-lenses
#20
Genís Cardona, Fidel Vega, Miguel A Gil, Consuelo Varón, José A Buil, María S Millán
PURPOSE: To compare objective image quality at distant, intermediate, and near foci with the corresponding visual acuity (VA) in patients symmetrically implanted with 5 different diffractive multifocal intraocular lenses (IOLs) (ReSTOR SV25T0, Tecnis ZKB00, Tecnis ZLB00, AT LISA 809, and AT LISA Tri 839MP) and a monofocal lens (Tecnis ZA9003) 3 months after cataract intervention. METHODS: Objective image quality, measured as the area under the modulation transfer function curve (AMTF), was tested in vitro in an eye model...
June 26, 2017: European Journal of Ophthalmology
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