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Angle closure glaucoma

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https://www.readbyqxmd.com/read/28542344/dynamic-changes-of-anterior-segment-in-patients-with-different-stages-of-primary-angle-closure-in-both-eyes-and-normal-subjects
#1
Jialiu Lin, Zhonghao Wang, Chuchen Chung, Jianan Xu, Miaomiao Dai, Jingjing Huang
PURPOSE: To compare changes in anterior segment parameters under light and dark (light-to-dark) conditions among eyes with chronic primary angle-closure glaucoma (CPACG), fellow eyes with confirmed or suspect primary angle-closure (PAC or PACS), and age-matched healthy eyes. METHODS: Consecutive patients with CPACG in one eye and PAC/PACS in the fellow eye, as well as age-matched healthy subjects were recruited. Anterior segment optical coherence tomography measurements were conducted under light and dark conditions, and anterior chamber, lens, and iris parameters compared...
2017: PloS One
https://www.readbyqxmd.com/read/28522116/a-new-approach-for-the-management-of-primary-angle-closure-glaucoma-after-eagle-trial
#2
F J Muñoz Negrete, A Azuara-Blanco
No abstract text is available yet for this article.
May 15, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28505344/genetics-of-glaucoma
#3
Janey L Wiggs, Louis R Pasquale
Genetic and genomic studies, including genome-wide association studies (GWAS) have accelerated the discovery of genes contributing to glaucoma, the leading cause of irreversible blindness world-wide. Glaucoma can occur at all ages, with Mendelian inheritance typical for rare early onset disease (before age 40) and complex inheritance evident in common adult-onset forms of disease. Recent studies have suggested possible therapeutic targets for some patients with early-onset glaucoma based on the molecular and cellular events caused by MYOC, OPTN and TBK1 mutations...
May 15, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28499992/segmentation-and-quantification-for-angle-closure-glaucoma-assessment-in-anterior-segment-oct
#4
Huazhu Fu, Yanwu Xu, Stephen Lin, Xiaoqin Zhang, Damon Wing Kee Wong, Jiang Liu, Alejandro Frangi, Mani Baskaran, Tin Aung
Angle-closure glaucoma is a major cause of irreversible visual impairment and can be identified by measuring the anterior chamber angle (ACA) of the eye. The ACA can be viewed clearly through Anterior Segment Optical Coherence Tomography (AS-OCT), but the imaging characteristics and the shapes and locations of major ocular structures can vary significantly among different AS-OCT modalities, thus complicating image analysis. To address this problem, we propose a datadriven approach for automatic AS-OCT structure segmentation, measurement and screening...
May 10, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28494566/-the-prevalence-of-blindness-caused-by-primary-angle-closure-glaucoma-in-middle-aged-chinese-population-a-systematic-review-and-meta-analysis
#5
M L Liu, Y X Wang
Objective: To evaluate the rate of blindness caused by primary angle closure glaucoma (PACG) in Chinese population of more than 40 years old, and to explore the effectiveness of a prevention and treatment system on PACG. Methods: We searched the databases of Pubmed, ScienceDirect, Springer Link, CNKI and Wanfang Data and collected all the original studies of the prevalence and blindness of angle closure glaucoma in China. The population was limited to over 40 years old. The research site was limited to the community-based, while the published time was not limited...
May 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28492910/effect-of-bevacizumab-vs-aflibercept-on-visual-acuity-among-patients-with-macular-edema-due-to-central-retinal-vein-occlusion-the-score2-randomized-clinical-trial
#6
Ingrid U Scott, Paul C VanVeldhuisen, Michael S Ip, Barbara A Blodi, Neal L Oden, Carl C Awh, Derek Y Kunimoto, Dennis M Marcus, John J Wroblewski, Jacqueline King
Importance: Studies have established the efficacy and safety of aflibercept for the treatment of macular edema due to central retinal vein occlusion. Bevacizumab is used off-label to treat this condition despite the absence of supporting data. Objective: To investigate whether bevacizumab is noninferior to aflibercept for the treatment of macular edema secondary to central retinal or hemiretinal vein occlusion. Design, Setting, and Participants: The SCORE2 randomized noninferiority clinical trial was conducted at 66 private practice or academic centers in the United States, and included 362 patients with macular edema due to central retinal or hemiretinal vein occlusion who were randomized 1:1 to receive aflibercept or bevacizumab...
May 23, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28489705/retinal-and-choroidal-vascular-occlusion-following-aqueous-misdirection-syndrome-in-a-patient-with-sickle-cell-trait
#7
Samantha Dewundara, Nariman Nassiri, Johnstone M Kim, Huseyin Kadikoy, Wendewessen Amde, Justin Tannir, Bret A Hughes, Gary W Abrams
PURPOSE: To report a patient with retinal and choroidal vascular occlusion as a presenting sign of sickle cell trait following the development of aqueous misdirection syndrome. METHODS: Retrospective chart review. RESULTS: A patient treated for bilateral chronic angle-closure glaucoma with sequential EX-PRESS glaucoma filtration device surgery developed sequential bilateral aqueous misdirection syndrome. The left eye developed retinal arterial and localized choroidal vascular occlusions subsequent to an acute elevation in intraocular pressure and possibly the use of oral acetazolamide...
May 9, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28442694/surgical-treatment-of-angle-closure-glaucoma
#8
Dawn Lim, Maria Cecilia Aquino, Paul Chew
Advances in anterior segment imaging modalities have contributed new insights towards a better understanding of the various mechanisms of angle-closure glaucoma (ACG). This development is key to good decision making when confronted with angle-closure patients needing appropriate therapy. Surgical management of ACG remains an integral part of glaucoma patient care. The distinctive anatomy of angle-closure eyes and the few objective lines of evidence to support the effectiveness of the different surgical treatment options present a challenge to glaucoma surgeons...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28442692/viscocanalostomy-and-canaloplasty-ab-externo-schlemm-s-canal-surgery
#9
Matthias C Grieshaber
Ab externo Schlemm's canal (SC) surgery (e.g., viscocanalostomy and canaloplasty) is a valuable alternative to glaucoma filtration surgery. It targets the abnormally high resistance to outflow in the trabecular meshwork (TM) and reestablishes the physiologic outflow system. In viscocanalostomy, viscoelastic substance is injected to dilate SC, which in turn leads to microdisruptions of the inner wall. In canaloplasty, the additional intracanalicular stent (suture or Stegmann Canal Expander®) keeps the canal patent and enhances the circumferential flow...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28442685/deep-sclerectomy
#10
Sylvain Roy, André Mermoud
Filtering surgery evolved from the classic trabeculectomy, in which penetration into the anterior chamber is a necessary step, toward nonpenetrating deep sclerectomy. The first procedure presents several serious complications, such as durable hypotony, hyphema, flat anterior chamber, choroidal detachment, endophthalmitis, and surgery-induced cataract. To avoid such drawbacks, a novel nonpenetrating technique was designed to improve the predictability of the intraocular pressure (IOP)-lowering action, while reducing the incidence of the immediate postoperative complications encountered with the penetrating method...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28413868/goniosynechialysis-and-repositioning-of-intraocular-lens-in-a-case-of-secondary-angle-closure-glaucoma
#11
Masaru Fujita, Masafumi Ogata, Yasuyuki Suzuki, Tsunetomo Ichihashi, Miyuki Nagahara, Kenji Kawai
PURPOSE: Implanting intraocular lens (IOL) in proper direction is important in cataract surgery to reduce the possibility of undesirable complications. We experienced a case who underwent vitrectomy combined with cataract surgery and developed secondary angle closure glaucoma caused by IOL misdirection. Goniosynechialysis (GSL) and repositioning of IOL successfully ameliorated the high intraocular pressure (IOP). CASE REPORT: A 64-year-old male with massive vitreous hemorrhage underwent vitrectomy combined with cataract surgery...
April 20, 2017: Tokai Journal of Experimental and Clinical Medicine
https://www.readbyqxmd.com/read/28412683/safety-in-treating-primary-acute-angle-closure-glaucoma-under-high-intraocular-pressure-by-compound-trabeculectomy
#12
Jianshu Yuan, Yuwen Wang, Pengyun Wang, Rong Ma
In clinical practice, Primary Acute Angle-closure Glaucoma (APACG) is a common disease with an increasing incidence rate and blind rate, and has attracted attention of medical researchers. When a patient suffers both primary acute glaucoma and high tension glaucoma, drug therapy can achieve limited efficacy, and operative treatment is necessary on this occasion. This research mainly explored the safety in treating high tension APACG by compound trabeculectomy, and observed the clinical treatment effect and incident rate of postoperative complications after compound trabeculectomy...
November 2016: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28404532/cost-effectiveness-and-cost-utility-of-community-screening-for-glaucoma-in-urban-india
#13
Denny John, Rajul Parikh
OBJECTIVES: Population-based screening for glaucoma has been demonstrated to be cost-effective if targeted at high-risk groups such as older adults and those with a family history of glaucoma, and through use of a technician for conducting initial assessment rather than a medical specialist. This study attempts to investigate the cost-effectiveness of a hypothetical community screening and subsequent treatment programme for glaucoma in comparison with current practice (i.e. with no screening programme but with some opportunistic case finding) in the urban areas of India...
April 6, 2017: Public Health
https://www.readbyqxmd.com/read/28400889/evaluation-of-ocular-surface-disease-in-asian-patients-with-primary-angle-closure
#14
Tan Ee Ling, Khairuddin Othman, Ong Poh Yan, Rasdi Abdul Rashid, Cheong Min Tet, Azhany Yaakob, Liza-Sharmini Ahmad Tajudin
OBJECTIVE: To evaluate the incidence of ocular surface disease (OSD) and to determine the effects of topical pressure-lowering drugs on ocular surface disease in primary angle closure patients. METHODS: This was a cross-sectional comparative study comparing primary angle closure glaucoma (PACG) patients (Group A) with primary angle closure and primary angle closure suspect (Group B). Group A was treated with topical pressure-lowering drugs; Group B was not. Data on ocular diagnosis and details of treatment were obtained from medical records...
2017: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/28400374/aqueous-outflow-facility-after-phacoemulsification-with-or-without-goniosynechialysis-in-primary-angle-closure-a-randomised-controlled-study
#15
Ian A Rodrigues, Pouya Alaghband, Laura Beltran Agullo, Elizabeth Galvis, Stephanie Jones, Rahat Husain, K Sheng Lim
BACKGROUND: Goniosynechialysis (GSL) to remove peripheral anterior synechiae (PAS) alongside standard cataract surgery has potential theoretical advantages, Published randomised trials, however, have not shown conclusive functional benefits and aqueous outflow changes following GSL are unknown. This study aimed to compare electronic Shiøtz tonographic aqueous outflow facility (TOF) following phacoemulsification with or without GSL in patients with primary angle closure (PAC) and PAC glaucoma...
October 17, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28399038/intraoperative-optical-coherence-tomography-assisted-descemet-stripping-automated-endothelial-keratoplasty-for-anterior-chamber-fibrous-ingrowth
#16
Tarek A Shazly, Lillian K To, Ian P Conner, Ladan Espandar
PURPOSE: Here, we present the first reported case of intraoperative optical coherence tomography (OCT)-assisted Descemet membrane stripping automated endothelial keratoplasty (DSAEK) in a patient with anterior segment fibrous ingrowth. METHODS: A 61-year-old woman with corneal edema and chronic angle-closure glaucoma secondary to fibrous ingrowth after 2 glaucoma shunt device implantations underwent dissection and removal of anterior chamber fibrous ingrowth and DSAEK...
June 2017: Cornea
https://www.readbyqxmd.com/read/28396513/common-polymorphisms-of-the-hogg1-ape1and-xrcc1genescorrelate-with-the-susceptibility-and-clinicopathological-features-of-primary-angle-closure-glaucoma
#17
Kun Zeng, Bo Zhong, Min Fang, Xiao-Li Shen, Li-Na Huang
This case study aims to elucidate the correlation between the hOGG1 , APE1 and XRCC1 gene polymorphisms to the susceptibility and clinicopathological features of primary angle-closure glaucoma (PACG) in a Chinese Han population. Blood samples were obtained from 258 PACG patients (case group) and 272 healthy volunteers (control group). Polymerase chain reaction with sequence specific primer (PCR-SSP) was used to determine the allele frequencies and genotype distributions of the hOGG1 , APE1 and XRCC1 genes. The risk factors of PACG were determined using logistic regression analysis...
April 10, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28388545/the-diagnostic-value-of-white-blood-cell-neutrophil-neutrophil-to-lymphocyte-ratio-and-lymphocyte-to-monocyte-ratio-in-patients-with-primary-angle-closure-glaucoma
#18
Shengjie Li, Wenjun Cao, Jianping Han, Binghua Tang, Xinghuai Sun
OBJECTIVE: Inflammatory mechanisms may have a role in the pathogenesis of primary angle closure glaucoma (PACG). The objective of this study was to investigate the diagnostic value of white blood cell (WBC), neutrophil, neutrophil to lymphocyte ratio (NLR), and lymphocyte to monocyte ratio (LMR) in patients with PACG and its association with glaucoma severity. METHOD: The study was retrospectively assessed in 771 consecutive PACG patients and 770 control subjects, laboratory parameters and clinical parameters were obtained from a medical data platform...
March 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28387107/-bilateral-angle-closure-glaucoma-induced-by-topiramate
#19
O Beaudry, V Goncette, N Collignon
Topiramate (TPM) is a drug used in migraine prophylaxis. It is involved in the bilateral angle-closure glaucoma due to idiosyncratic response. This side effect is rare but can lead to irreversible vision loss if it is not recognized in time and if it is not managed immediately by an ophthalmologist.
November 2016: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28372858/visual-field-progression-in-patients-with-primary-angle-closure-glaucoma-using-pointwise-linear-regression-analysis
#20
Sushma Verma, Monisha E Nongpiur, Eray Atalay, Xin Wei, Rahat Husain, David Goh, Shamira A Perera, Tin Aung
PURPOSE: To evaluate visual field (VF) progression and rate of glaucomatous VF loss in patients with primary angle-closure glaucoma (PACG) using pointwise linear regression (PLR) trend analysis. DESIGN: Clinic-based retrospective study. PARTICIPANTS: Primary angle-closure glaucoma patients with 5 or more reliable VF tests and with 5 years or more of follow-up. METHODS: Visual field progression was assessed by PROGRESSOR software version 3...
March 31, 2017: Ophthalmology
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