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Angle closure glaucoma

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https://www.readbyqxmd.com/read/28087548/early-lens-extraction-with-intraocular-lens-implantation-for-the-treatment-of-primary-angle-closure-glaucoma-an-economic-evaluation-based-on-data-from-the-eagle-trial
#1
Mehdi Javanbakht, Augusto Azuara-Blanco, Jennifer M Burr, Craig Ramsay, David Cooper, Claire Cochran, John Norrie, Graham Scotland
OBJECTIVE: To investigate the cost-effectiveness of early lens extraction with intraocular lens implantation for the treatment of primary angle closure glaucoma (PACG) compared to standard care. DESIGN: Cost-effectiveness analysis alongside a multicentre pragmatic two-arm randomised controlled trial. Patients were followed-up for 36 months, and data on health service usage and health state utility were collected and analysed within the trial time horizon. A Markov model was developed to extrapolate the results over a 5-year and 10-year time horizon...
January 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28079654/retinal-oximetry-in-subjects-with-glaucomatous-hemifield-asymmetry
#2
Zhu Li Yap, Charles Ong, Yi Fang Lee, Andrew Tsai, Clarissa Cheng, Monisha E Nongpiur, Shamira A Perera
PURPOSE: Although some studies suggest a strong link between retinal vessel oxygenation and damage to the retinal nerve fiber layer (RNFL) seen in glaucoma, it has yet to be conclusively proven. This study compares intraocular retinal oximetry in glaucomatous eyes displaying asymmetrically affected hemifields across different subgroups of glaucoma, namely primary angle closure glaucoma (PACG), primary open-angle glaucoma (POAG), and normal tension glaucoma (NTG). METHODS: In this prospective cross-sectional study, 99 patients (PACG, n=28; POAG, n=37; NTG, n=34) underwent retinal oxygenation and vessel caliber measurements using the Oxymap T1 Retinal Oximeter, Cirrus optical coherence tomography, and Humphrey visual field testing...
January 10, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28058167/isolated-microspherophakia-presenting-with-angle-closure-glaucoma
#3
Tülay Şimşek, Emrullah Beyazyıldız, Enver Şimşek, Faruk Öztürk
We report a case of 13-year-old girl presenting to our clinic with blurred vision in both eyes. Ophthalmic examination revealed high myopia and angle-closure glaucoma due to pupillary block caused by small, spherical crystalline lenses. Treatment approaches to glaucoma in patients with microspherophakia are discussed in this case report.
October 2016: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28056057/flat-anterior-chamber-after-trabeculectomy-in-secondary-angle-closure-glaucoma-with-best1-gene-mutation-case-series
#4
Yimin Zhong, Xinxing Guo, Hui Xiao, Jingyi Luo, Chengguo Zuo, Xiaobo Huang, Jingjing Huang, Lan Mi, Qingjiong Zhang, Xing Liu
PURPOSE: Trabeculectomy has been regarded as a mainstay of initial treatment in eyes of angle closure glaucoma (ACG) with peripheral anterior synechia > 180° in the Chinese population while its efficacy in secondary ACG with BEST1 gene mutation remains unclear. We set out to investigate the treatment outcome of trabeculectomy for secondary ACG in a group of patients with autosomal recessive bestrophinopathy (ARB). METHODS: In this retrospective case series study, 8 secondary ACG patients with ARB and their 4 recruited family members underwent a thorough ophthalmic examination including best-corrected visual acuity, Goldmann applanation tonometry, gonioscopy, and fundus examinations...
2017: PloS One
https://www.readbyqxmd.com/read/28039061/primary-angle-closure-glaucoma-what-we-know-and-what-we-don-t-know
#5
REVIEW
Xinghuai Sun, Yi Dai, Yuhong Chen, Dao-Yi Yu, Stephen J Cringle, Junyi Chen, Xiangmei Kong, Xiaolei Wang, Chunhui Jiang
Primary angle-closure glaucoma (PACG) is a common cause of blindness. Angle closure is a fundamental pathologic process in PAGC. With the development of imaging devices for the anterior segment of the eye, a better understanding of the pathogenesis of angle closure has been reached. Aside from pupillary block and plateau iris, multiple-mechanisms are more common contributors for closure of the angle such as choroidal thickness and uveal expansion, which may be responsible for the presenting features of PACG...
December 28, 2016: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28035845/efficacy-of-nd-yag-laser-iridotomies-in-primary-angle-closure-diseases-superior-peripheral-iridotomy-versus-inferior-peripheral-iridotomy
#6
Mostafa Ahmadi, Zahra Naderi Beni, Afsaneh Naderi Beni, Farzan Kianersi
PURPOSE: To evaluate the efficacy and safety of superior peripheral iridotomy versus inferior peripheral iridotomy in the treatment of primary angle closure glaucoma (PACG) in phakic patients. METHODS: In this randomized, prospective, paired-eye comparative study, patients with primary angle closure or primary angle-closure suspects were recruited and randomized to receive (NdYAG) laser peripheral iridotomy (LPI) superiorly in one eye and inferiorly in the other eye...
December 30, 2016: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28001106/evaluation-of-potential-risk-factors-for-development-of-primary-angle-closure-glaucoma-in-bouviers-des-flandres
#7
Alexis J Dubin, Ellison Bentley, Kevin A Buhr, Paul E Miller
OBJECTIVE To evaluate potential risk factors for development of primary angle-closure glaucoma (PACG) in Bouviers des Flandres. DESIGN Prospective, observational study. ANIMALS 98 Bouviers des Flandres. PROCEDURES All dogs underwent slit-lamp biomicroscopy, indirect ophthalmoscopy, gonioscopy, applanation tonometry, streak retinoscopy, and A-scan, B-scan, and high-resolution ultrasonography. Iridocorneal angles and degree of pectinate ligament dysplasia sheeting were graded, and an angle index was mathematically derived for each eye on the basis of these values...
January 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/27990116/combined-acute-haemolytic-and-secondary-angle-closure-glaucoma-following-spontaneous-intraocular-haemorrhages-in-a-patient-on-warfarin
#8
Walter Andreatta, Stavroula Boukouvala, Atul Bansal
BACKGROUND: To report the first described case of combined haemolytic and acute angle closure glaucoma secondary to spontaneous intraocular haemorrhages in a patient on excessive anticoagulation. To the best of our knowledge, this is the first case reported in the literature presenting with raised intraocular pressure due to both mechanisms. CASE DESCRIPTION: A 90-year-old woman presented with acute pain and reduction in vision in the left eye. Her intraocular pressure (IOP) was 55 mm Hg...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/27982217/bilateral-acute-angle-closure-glaucoma-as-a-first-presentation-of-granulomatosis-with-polyangiitis-wegener-s
#9
Alper Mete, Sabit Kimyon, Oguzhan Saygili, Can Pamukcu, Kıvanç Güngör
We report a case of bilateral acute angle-closure glaucoma in a patient with undiagnosed granulomatosis with polyangiitis (Wegener's). A 59-year-old man presented with a severe headache, ocular pain, blurred vision, shortness of breath, and mild fever. Clinical examination revealed conjunctival chemosis, corneal edema, and shallow anterior chambers. Closed angles were observed bilaterally on gonioscopy. The patient was treated with intravenous mannitol, oral acetazolamide, and anti-glaucomatous eye drops. Over the following two days, his vision improved and intraocular pressures decreased...
September 2016: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/27956291/modified-360-degree-suture-trabeculotomy-combined-with-phacoemulsification-and-intraocular-lens-implantation-for-glaucoma-and-coexisting-cataract
#10
Yasuhiro Shinmei, Riki Kijima, Takuya Nitta, Kan Ishijima, Takeshi Ohguchi, Shinki Chin, Susumu Ishida
PURPOSE: To assess the efficacy and safety of a modified 360-degree suture trabeculotomy combined with a cataract surgery technique in patients with glaucoma and coexisting cataract. SETTING: Hokkaido University Hospital, Sapporo, Japan. DESIGN: Retrospective case series. METHODS: Medical records of patients with glaucoma having a modified 360-degree trabeculotomy combined with cataract surgery (Group 1) were reviewed...
November 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27938955/limbus-insertion-distance-of-superior-rectus-in-primary-angle-closure-glaucoma-an-anterior-segment-oct-study
#11
Wenbin Huang, Xinbo Gao, Xinyu Zhang, Xiulan Zhang
OBJECTIVE: To compare the distance from the corneoscleral limbus to the insertion site of the superior rectus of primary angle-closure glaucoma (PACG) patients with normal controls and to identify potential characteristics associated with limbus-insertion distance. DESIGN: Cross-sectional study. PARTICIPANTS: A total of 92 subjects (eyes) were enrolled in the study: 35 were nonglaucoma controls and 57 were PACG patients. METHODS: The limbus-insertion distance of the superior rectus was measured by anterior segment optical coherence tomography (AS-OCT) and intraoperative surgical caliper...
December 2016: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/27935603/anterior-segment-imaging-based-subdivision-of-subjects-with-primary-angle-closure-glaucoma
#12
M E Nongpiur, E Atalay, T Gong, M Loh, H K Lee, M He, S A Perera, T Aung
PurposeThe purpose of this study was to identify whether it was possible to subdivide subjects with primary angle-closure glaucoma (PACG) based on anterior segment optical coherence tomography (ASOCT) imaging, and to determine the characteristics of such subgroups.MethodsWe evaluated 210 subjects with PACG. All subjects underwent gonioscopy and ASOCT imaging. Customized software was used to measure ASOCT parameters. An agglomerative hierarchical clustering method was first used to determine the optimum number of parameters to be included in the determination of subgroups...
December 9, 2016: Eye
https://www.readbyqxmd.com/read/27929730/detection-of-glaucoma-using-image-processing-techniques-a-critique
#13
B Naveen Kumar, R P Chauhan, Nidhi Dahiya
OBJECTIVE: The primary objective of this article is to present a summary of different types of image processing methods employed for the detection of glaucoma, a serious eye disease. INTRODUCTION: Glaucoma affects the optic nerve in which retinal ganglion cells become dead, and this leads to loss of vision. The principal cause is the increase in intraocular pressure, which occurs in open-angle and angle-closure glaucoma, the two major types affecting the optic nerve...
December 8, 2016: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/27926530/the-association-between-serum-uric-acid-and-glaucoma-severity-in-primary-angle-closure-glaucoma-a-retrospective-case-control-study
#14
Shengjie Li, Mingxi Shao, Binghua Tang, Aiping Zhang, Wenjun Cao, Xinghuai Sun
Uric acid (UA) is a major antioxidant molecule and has been hypothesized to have a protective effect on the central nervous system against oxidative damage. We prospectively investigated the serum concentration of UA in primary angle closure glaucoma (PACG), and explored the association between serum concentration of UA and the severity of PACG. Using a retrospective case-control study design, 886 PACG subjects and 994 control subjects who attended the Eye & ENT Hospital of Fudan University, were eligible for this study...
December 1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27915382/high-intensity-focused-ultrasound-treatment-in-patients-with-refractory-glaucoma
#15
Giuseppe Giannaccare, A Vagge, C Gizzi, A Bagnis, S Sebastiani, C Del Noce, M Fresina, C E Traverso, E C Campos
PURPOSE: To assess the safety and efficacy of ultrasound coagulation of the ciliary body in refractory glaucoma. METHODS: This prospective multicenter interventional study was conducted in two Italian university-affiliated glaucoma centers: St. Orsola-Malpighi Teaching Hospital (Bologna, Italy) and University Eye Clinic of Genoa (Genoa, Italy). The main inclusion criterion was the diagnosis of glaucoma with a baseline intraocular pressure (IOP) ≥ 21 mmHg while on maximum topical and systemic medical hypotensive treatment...
December 3, 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/27905331/prevalent-practice-patterns-in-glaucoma-poll-of-indian-ophthalmologists-at-a-national-conference
#16
Nikhil Shreeram Choudhari, Vanita Pathak-Ray, Sushmita Kaushik, Prateep Vyas, Ronnie George
PURPOSE: The aim of this study is to explore and compare the prevailing practice patterns in the diagnosis and management of glaucoma among subspecialists and general ophthalmologists in India. MATERIALS AND METHODS: This is an interactive audience response system (ARS) based poll of ophthalmologists attending the annual conference of the Glaucoma Society of India in 2013. RESULTS: The information was obtained from 379 ophthalmologists (146 glaucoma specialists, 54 nonglaucoma subspecialists, and 179 general ophthalmologists)...
October 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27899368/diagnostic-ability-of-peripapillary-vessel-density-measurements-of-optical-coherence-tomography-angiography-in-primary-open-angle-and-angle-closure-glaucoma
#17
Harsha L Rao, Sujatha V Kadambi, Robert N Weinreb, Narendra K Puttaiah, Zia S Pradhan, Dhanaraj A S Rao, Rajesh S Kumar, Carroll A B Webers, Rohit Shetty
AIMS: To evaluate the diagnostic ability of peripapillary vessel density measurements on optical coherence tomography angiography (OCTA) in primary open-angle glaucoma (POAG) and primary angle-closure glaucoma (PACG), and to compare these with peripapillary retinal nerve fibre layer (RNFL) thickness measurements. METHODS: In a cross-sectional study, 48 eyes of 33 healthy control subjects, 63 eyes of 39 patients with POAG and 49 eyes of 32 patients with PACG underwent OCTA (RTVue-XR, Optovue, Fremont, California, USA) and RNFL imaging with spectral domain OCT...
November 29, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27898467/an-update-on-therapeutic-modalities-for-the-prevention-of-angle-closure-glaucoma
#18
Behzad Amoozgar, Sasan Moghimi, Ying Han, Shan C Lin
PURPOSE OF REVIEW: Angle closure glaucoma is a prominent burden for the worldwide health system. Because this disorder is commonly asymptomatic, and can lead to irreversible blindness, the proper screening and early management of this disease can be critical. The definitions of angle closure and consequently its treatment guidelines have been dynamically modified and updated in the past decades. Surgical and laser techniques have been adapted to address the different mechanisms involved in the manifestation of the disease and properly prevent its progression in different stages...
November 25, 2016: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/27898466/genetics-and-genetic-testing-for-glaucoma
#19
Matthew A Miller, John H Fingert, Daniel I Bettis
PURPOSE OF REVIEW: In recent decades, investigators have identified numerous genes and genetic factors that cause or contribute risk for glaucoma. These findings have increased our understanding of disease mechanisms, provided us with new diagnostic tools, and may allow for development of improved therapies for glaucoma. However, genetic testing is most useful when it is reserved for appropriate patients. The purpose of this article is to review key points and recent developments regarding the genetics and genetic testing for glaucoma and to provide recommendations for when genetic testing may be warranted...
November 25, 2016: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/27874246/predicting-the-intereye-asymmetry-in-functional-and-structural-damage-in-glaucoma-using-automated-pupillography
#20
Harsha L Rao, Sujatha V Kadambi, Srilakshmi Dasari, Hemanth B Reddy, Meena Palakurthy, Mohammed Riyazuddin, Narendra K Puttaiah, Zia S Pradhan, Dhanaraj A S Rao, Rohit Shetty
PURPOSE: To predict the intereye asymmetry in functional (mean deviation, MD on visual field, VF) and structural (retinal nerve fibre layer, RNFL and ganglion cell complex, GCC thickness on spectral domain optical coherence tomography, SDOCT) measurements in glaucoma using the automated pupillography parameters. METHODS: Fifty-nine subjects with a diagnosis of either glaucoma or glaucoma suspect underwent automated pupillography along with VF and SDOCT examinations...
November 22, 2016: Acta Ophthalmologica
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