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Tension normal glaucoma

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https://www.readbyqxmd.com/read/28333895/visual-field-defects-in-young-patients-with-open-angle-glaucoma-comparison-between-high-tension-and-normal-tension-glaucoma
#1
Ji-Hye Park, Chungkwon Yoo, Jinhwan Park, Yong Yeon Kim
PURPOSE: To investigate the clinical features of young Korean patients with open-angle glaucoma (OAG), and to compare visual field (VF) defects between patients with normal-tension glaucoma (NTG) and those with high-tension glaucoma (HTG). MATERIALS AND METHODS: Patients with OAG younger than 40 years of age were divided into NTG and HTG groups based on untreated intraocular pressure (IOP) level. The patients were matched according to the mean deviation of standard automated perimetry...
March 22, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28315568/diurnal-blood-pressure-parameters-in-normal-tension-glaucoma-primary-open-angle-glaucoma-and-healthy-subjects
#2
Tolga Kocatürk, Çağdaş Akgüllü, Gökhan E Evliçoğlu, İmran K Ömürlü, Harun Çakmak, Ufuk Eryılmaz, Volkan Dayanır
OBJECTIVE: The pathophysiology of glaucoma is still undisclosed. Cardiovascular hemodynamic changes are hypothesized to contribute to glaucoma. This study aimed to determine the differences in the diurnal blood pressure (BP) of patients with normal tension glaucoma (NTG), primary open angle glaucoma (POAG), and controls without glaucoma. METHODS: A total of 129 patients were included in this study. The day-night average systolic and diastolic BPs, the day-night average pulse pressures (PPs), the day-night average heart rates, and the percentage of BP decline at night were obtained from the Holter devices and compared...
March 9, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28306361/visual-field-progression-is-associated-with-systemic-concentration-of-macrophage-chemoattractant-protein-1-in-normal-tension-glaucoma
#3
Na Young Lee, Min Hee Kim, Chan Kee Park
PURPOSE: To investigate the associations between endothelin-1 (ET-1) and macrophage chemoattractant protein-1 (MCP-1) levels and visual field (VF) progression in normal-tension glaucoma (NTG). METHODS: We conducted a prospective, longitudinal study in 71 patients with NTG. Blood samples from all subjects were assayed for ET-1 and MCP-1 concentrations, and baseline ophthalmic examinations, including the VF, were performed. Baseline data were compared with follow-up data over 3 years...
March 17, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28288589/choroidal-infarction-in-a-glaucoma-patient-with-flammer-syndrome-a-case-report-with-a-long-term-follow-up
#4
Barbara Terelak-Borys, Iwona Grabska-Liberek, Anita Piekarniak-Wozniak, Katarzyna Konieczka
BACKGROUND: We present a long term follow-up of a young female patient with choroidal infarction, primary open angle glaucoma and Flammer syndrome. The patient had no classical risk factors for vascular occlusions, except for the presence of Flammer syndrome. The essential feature of this syndrome is primary vascular dysregulation, sometimes including vasospasm. The vessels of affected people respond more intensely to a number of stimuli, such as coldness or emotional stress. Any organ can be involved, including parts of the eye...
March 14, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28285308/clinical-features-of-japanese-patients-with-central-retinal-vein-occlusion-complicated-by-normal-tension-glaucoma-a-retrospective-study
#5
Teruyo Kida, Masanori Fukumoto, Takaki Sato, Hidehiro Oku, Tsunehiko Ikeda
PURPOSE: The association of central retinal vein occlusion (CRVO) with primary open-angle glaucoma (POAG) or ocular hypertension has been reported, and lowering intraocular pressure (IOP) helps to improve the retinal circulation in eyes with CRVO. However, the clinical features of CRVOs with normal-tension glaucoma (NTG) are not well known. Therefore, we investigated Japanese CRVO patients with NTG. METHODS: We retrospectively investigated 234 CRVO patients over 5 years, with follow-ups of more than 12 months, and evaluated the prevalence of glaucoma...
March 11, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28282064/predicting-the-risk-of-parafoveal-scotoma-in-myopic-normal-tension-glaucoma-role-of-optic-disc-tilt-and-rotation
#6
M S Sung, H Heo, Y S Ji, S W Park
PurposeThe purpose of the study was to evaluate the factors associated with development of parafoveal scotoma in early myopic normal tension glaucoma (NTG).Patients and methodsNinety-nine myopic NTG patients with mean deviation (MD) >-6.0 decibels (dB) were enrolled. Parafoveal scotoma was defined as a visual field (VF) defect within 10° of fixation with at least one point at P<1% lying at the four innermost central points. Systemic factors, optic disc characteristics including tilt ratio, rotation degree, β-zone parapapillary atrophy, disc hemorrhage, and peripapillary retinal nerve fiber layer and macular ganglion cell-inner plexiform layer (mGCIPL) thickness parameters using optical coherence tomography were evaluated...
March 10, 2017: Eye
https://www.readbyqxmd.com/read/28280945/influence-of-intraocular-pressure-reduction-on-progression-of-normal-tension-glaucoma-with-myopic-tilted-disc-and-associated-risk-factors
#7
Bo Ram Seol, Soa Kim, Dong Myung Kim, Ki Ho Park, Jin Wook Jeoung, Seok Hwan Kim
Purpose To evaluate the influence of intraocular pressure (IOP) reduction on progression of normal-tension glaucoma (NTG) with myopic tilted disc and to demonstrate the associated risk factors. METHODS: The medical records on 109 eyes of 109 NTG patients with myopic tilted discs who were followed up for more than 5 years and treated with topical medications were reviewed. Glaucoma progression was defined according to either structural or functional deterioration. Patients were divided into tertile groups according to the percent IOP reduction from the baseline, and the cumulative probability of NTG nonprogression of the upper- and lower-tertile groups was compared using Kaplan-Meier survival analysis...
March 9, 2017: Japanese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28280481/the-optic-canal-a-bottleneck-for-cerebrospinal-fluid-dynamics-in-normal-tension-glaucoma
#8
Achmed Pircher, Margherita Montali, Jatta Berberat, Luca Remonda, Hanspeter E Killer
PURPOSE: To report on the optic canal cross-sectional area (OCA) in Caucasian patients with normal-tension glaucoma (NTG) compared with Caucasian control subjects without known optic nerve (ON) diseases. METHODS: Retrospective analysis of computed tomographic images of the cranium and orbits in 56 NTG patients (30 females and 26 males; 99 of 112 eyes; mean age 67.7 ± 11.1 years). Fifty-six age- and gender-matched subjects (mean age: 68.0 ± 11.2 years) without known ON diseases served as controls...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28269436/development-of-ocular-viscosity-characterization-method
#9
Shu-Hao Lu, Guo-Zhen Chen, Stanley Y Y Leung, David C C Lam
Glaucoma is the second leading cause for blindness. Irreversible and progressive optic nerve damage results when the intraocular pressure (IOP) exceeds 21 mmHg. The elevated IOP is attributed to blocked fluid drainage from the eye. Methods to measure the IOP are widely available, but methods to measure the viscous response to blocked drainage has yet been developed. An indentation method to characterize the ocular flow is developed in this study. Analysis of the load-relaxation data from indentation tests on drainage-controlled porcine eyes showed that the blocked drainage is correlated with increases in ocular viscosity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28264060/whole-exome-sequencing-implicates-eye-development-the-unfolded-protein-response-and-plasma-membrane-homeostasis-in-primary-open-angle-glaucoma
#10
Tiger Zhou, Emmanuelle Souzeau, Shiwani Sharma, John Landers, Richard Mills, Ivan Goldberg, Paul R Healey, Stuart Graham, Alex W Hewitt, David A Mackey, Anna Galanopoulos, Robert J Casson, Jonathan B Ruddle, Jonathan Ellis, Paul Leo, Matthew A Brown, Stuart MacGregor, David J Lynn, Kathryn P Burdon, Jamie E Craig
PURPOSE: To identify biological processes associated with POAG and its subtypes, high-tension (HTG) and normal-tension glaucoma (NTG), by analyzing rare potentially damaging genetic variants. METHODS: A total of 122 and 65 unrelated HTG and NTG participants, respectively, with early onset advanced POAG, 103 non-glaucoma controls and 993 unscreened ethnicity-matched controls were included in this study. Study participants without myocilin disease-causing variants and non-glaucoma controls were subjected to whole exome sequencing on an Illumina HiSeq2000...
2017: PloS One
https://www.readbyqxmd.com/read/28258400/a-review-of-selective-laser-trabeculoplasty-recent-findings-and-current-perspectives
#11
REVIEW
Yujia Zhou, Ahmad A Aref
Selective laser trabeculoplasty (SLT) has been widely used in the clinical management of glaucoma, both as primary and adjunctive treatment. As new evidence continues to arise, we review the current literature in terms of indications and efficacy, surgical technique, postoperative care, repeatability, and complications of this therapy. SLT has been shown to be effective in various glaucomas, including primary open-angle glaucoma (POAG), normal-tension glaucoma (NTG), steroid-induced glaucoma, pseudoexfoliation glaucoma (PXFG), and primary angle-closure glaucoma (PACG), as well as other glaucoma subtypes...
March 3, 2017: Ophthalmology and Therapy
https://www.readbyqxmd.com/read/28251307/-diffusion-tensor-imaging-of-the-visual-pathway-in-glaucomatous-optic-nerve-atrophy
#12
REVIEW
T Engelhorn, M A Schmidt, A Dörfler, G Michelson
In Germany more than one million inhabitants suffer from glaucoma, more than 100,000 are threatened with blindness because glaucoma is often diagnosed too late or not at all. Diagnosis and monitoring is usually carried out "only" by examination of the retina and not the whole visual pathway. However, the eye is just "the tip of the iceberg" of the actual visual pathway, which extends through the brain to the visual cortex. The interdisciplinary holistic assessment of the whole visual pathway in glaucoma is of crucial importance because glaucoma is a complex neurodegenerative disease...
March 1, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28243830/stage-of-visual-field-loss-and-age-at-diagnosis-in-1988-patients-with-different-glaucomas-implications-for-glaucoma-screening-and-driving-ability
#13
Gwendolyn Gramer, Eugen Gramer
PURPOSE: To compare stage of visual field loss (VFL) and age at diagnosis between patients with different types of glaucoma with regard to glaucoma screening and driving ability. METHODS: In a cross-sectional study of 1988 consecutive patients with different types of glaucoma VFL at diagnosis and age at diagnosis were assessed. Patients with binocular advanced or severe VFL were classified unable, patients with no VFL in one eye and VFL I-V (Aulhorn classification) in the other eye able, all other constellations questionably able to drive...
February 27, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28237136/risk-factors-for-visual-field-progression-of-normal-tension-glaucoma-in-patients-with-myopia
#14
Hyoung Won Bae, Sang Jin Seo, Sang Yeop Lee, Yun Ha Lee, Samin Hong, Gong Je Seong, Chan Yun Kim
OBJECTIVE: To identify risk factors for visual field progression of normal-tension glaucoma (NTG) in patients with myopia. DESIGN: Longitudinal, observational study. PARTICIPANTS: Fifty-one eyes of 51 NTG patients with myopia (less than -0.75D based on spherical equivalence) who had undergone visual field (VF) testing at least once per year for ≥6 years between November 2005 and December 2013. METHODS: Progression was defined using event-based guided progression analysis...
February 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28227682/development-of-ocular-viscosity-characterization-method
#15
Shu-Hao Lu, Guo-Zhen Chen, Stanley Y Y Leung, David C C Lam, Shu-Hao Lu, Guo-Zhen Chen, Stanley Y Y Leung, David C C Lam, David C C Lam, Shu-Hao Lu, Guo-Zhen Chen, Stanley Y Y Leung
Glaucoma is the second leading cause for blindness. Irreversible and progressive optic nerve damage results when the intraocular pressure (IOP) exceeds 21 mmHg. The elevated IOP is attributed to blocked fluid drainage from the eye. Methods to measure the IOP are widely available, but methods to measure the viscous response to blocked drainage has yet been developed. An indentation method to characterize the ocular flow is developed in this study. Analysis of the load-relaxation data from indentation tests on drainage-controlled porcine eyes showed that the blocked drainage is correlated with increases in ocular viscosity...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28223208/characterizing-the-poagome-a-bioinformatics-driven-approach-to-primary-open-angle-glaucoma
#16
REVIEW
Ian D Danford, Lana D Verkuil, Daniel J Choi, David W Collins, Harini V Gudiseva, Katherine E Uyhazi, Marisa K Lau, Levi N Kanu, Gregory R Grant, Venkata R M Chavali, Joan M O'Brien
Primary open-angle glaucoma (POAG) is a genetically, physiologically, and phenotypically complex neurodegenerative disorder. This study addressed the expanding collection of genes associated with POAG, referred to as the "POAGome." We used bioinformatics tools to perform an extensive, systematic literature search and compiled 522 genes with confirmed associations with POAG and its related phenotypes (normal tension glaucoma, ocular hypertension, juvenile open-angle glaucoma, and primary congenital glaucoma)...
February 18, 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28178303/differentiation-of-glaucomatous-optic-discs-with-different-appearances-using-optic-disc-topography-parameters-the-glaucoma-stereo-analysis-study
#17
Masaki Tanito, Koji Nitta, Maki Katai, Yasushi Kitaoka, Yu Yokoyama, Kazuko Omodaka, Toru Nakazawa
The Glaucoma Stereo Analysis Study (GSAS) is a multicenter collaborative study of the characteristics of glaucomatous optic disc morphology using a stereo fundus camera. Using GSAS dataset, the formulas for predicting different glaucomatous optic disc appearances were established. The GSAS dataset containing three-dimensionally-analyzed optic disc topographic parameters from 187 eyes with primary open-angle glaucoma was assessed with discrimination analyses to obtain formulas predictive of glaucomatous optic disc appearances: focal ischemic (FI); generalized enlargement (GE), myopic glaucomatous (MY), and senile sclerotic (SS)...
2017: PloS One
https://www.readbyqxmd.com/read/28178150/the-effects-of-selective-laser-trabeculoplasty-and-travoprost-on-circadian-intraocular-pressure-fluctuations-a-randomized-clinical-trial
#18
RANDOMIZED CONTROLLED TRIAL
Weerawat Kiddee, Supreeya Atthavuttisilp
BACKGROUND: To compare the effect of selective laser trabeculoplasty (SLT) and travoprost on 24-hour IOP fluctuations in primary open-angle glaucoma (POAG) and normal-tension glaucoma (NTG). METHODS: Sixty eyes were included. Sixteen and 14 eyes of POAG patients were randomized to receive 360° SLT or 0.004% travoprost, respectively. Fourteen and 16 eyes of NTG patients were randomized to receive either SLT or travoprost, respectively. The 24-hour IOP data were collected before treatment and 6 to 8 weeks after treatment...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28171872/24-hour-contact-lens-sensor-monitoring-of-intraocular-pressure-related-profiles-in-normal-tension-glaucoma-and-rates-of-disease-progression
#19
Katie Hoban, Robert Peden, Roly Megaw, Patricia Halpin, Andrew J Tatham
PURPOSE: To determine the relationship between the rate of glaucomatous visual field loss and the amplitude of a 24-h intraocular pressure (IOP)-related profile measured using a contact lens sensor (CLS). METHODS: This observational study included 22 patients with glaucoma and an IOP of consistently ≤21 mm Hg during office hours. All subjects underwent Goldmann tonometry, standard automated perimetry (SAP), dilated fundus examination, and had a CLS recording. A cosine function was used to obtain peak (acrophase), trough (bathyphase), and amplitude measurements...
February 8, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28171867/analysis-of-the-interleukin-6-174-locus-polymorphism-and-serum-il-6-levels-with-the-severity-of-normal-tension-glaucoma
#20
Ching-Yu Wang, Chiao-Ying Liang, Shih-Chao Feng, Keng-Hung Lin, Hsin-Nung Lee, Ying-Cheng Shen, Li-Chen Wei, Chia-Jen Chang, Min-Yen Hsu, Yi-Yin Yang, Chun-Hung Chiu, Chun-Yuan Wang
PURPOSE: In normal tension glaucoma (NTG), factors other than elevated intraocular pressure are likely to have a role in the pathogenesis of optic neuropathy. Recent studies of glaucoma or retinal ganglion cells (RGCs) reveal that the cytokine interleukin-6 (IL-6) is linked to the pathogenesis of glaucoma and may regulate RGC survival or death. The IL-6 (-174) G allele has also been shown to increase the IL-6 protein. We hypothesized that the IL-6 (-174) polymorphism may be a predisposing genetic factor affecting the severity of glaucoma...
February 8, 2017: Ophthalmic Research
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