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https://www.readbyqxmd.com/read/29114838/optical-coherence-tomography-angiography-macular-and-peripapillary-vessel-perfusion-density-in-healthy-subjects-glaucoma-suspects-and-glaucoma-patients
#1
COMPARATIVE STUDY
Giacinto Triolo, Alessandro Rabiolo, Nathan D Shemonski, Ali Fard, Federico Di Matteo, Riccardo Sacconi, Paolo Bettin, Stephanie Magazzeni, Giuseppe Querques, Luis E Vazquez, Piero Barboni, Francesco Bandello
Purpose: To evaluate macular and peripapillary vessel perfusion density (VD) in glaucoma suspects (GS) and glaucoma patients; to correlate ganglion cell-inner plexiform layer (GCIPL) and retinal nerve fiber layer (RNFL) thicknesses with macular and peripapillary VD; and to evaluate the diagnostic accuracy of the structural and vascular parameters. Methods: A consecutive series of GS, glaucoma patients, and healthy subjects was prospectively recruited from July 1, 2016, to January 31, 2017...
November 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29049726/comparison-of-sectoral-structure-function-relationships-in-glaucoma-vessel-density-versus-thickness-in-the-peripapillary-retinal-nerve-fiber-layer
#2
COMPARATIVE STUDY
Kimikazu Sakaguchi, Tomomi Higashide, Sachiko Udagawa, Shinji Ohkubo, Kazuhisa Sugiyama
Purpose: To compare the sectoral structure-function relationships in glaucoma between two structural parameters, vessel density (VD) and thickness, in the peripapillary retinal nerve fiber layer (RNFL). Methods: Optical coherence tomography (OCT) angiography (AngioVue/RTVue-XR) for VD and OCT (RS-3000) for peripapillary RNFL thickness were performed in 129 eyes from 129 subjects (94 glaucoma, 17 glaucoma suspects, and 18 normal eyes). Humphrey visual field (VF) tests were performed using a SITA standard 24-2 program...
October 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29045329/hybrid-deep-learning-on-single-wide-field-optical-coherence-tomography-scans-accurately-classifies-glaucoma-suspects
#3
Hassan Muhammad, Thomas J Fuchs, Nicole De Cuir, Carlos G De Moraes, Dana M Blumberg, Jeffrey M Liebmann, Robert Ritch, Donald C Hood
PURPOSE: Existing summary statistics based upon optical coherence tomographic (OCT) scans and/or visual fields (VFs) are suboptimal for distinguishing between healthy and glaucomatous eyes in the clinic. This study evaluates the extent to which a hybrid deep learning method (HDLM), combined with a single wide-field OCT protocol, can distinguish eyes previously classified as either healthy suspects or mild glaucoma. METHODS: In total, 102 eyes from 102 patients, with or suspected open-angle glaucoma, had previously been classified by 2 glaucoma experts as either glaucomatous (57 eyes) or healthy/suspects (45 eyes)...
October 17, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28980561/-heidelberg-retinal-tomography-of-the-optic-disc-in-the-early-diagnosis-of-glaucoma
#4
V A Machekhin, O L Fabrikantov
AIM: To analyze anatomical and topographic optic disc parameters with account to the disc area in glaucoma suspects. MATERIAL AND METHODS: The study included 302 patients (408 eyes) aged 25 to 76 years (the mean age of 50.5±12.5 years); men and women roughly equal in number. The eyes were divided into 8 groups depending on the disc area, which ranged from 0.89 to 3.5 mm2. With HRT, 11 global and sector optic disc parameters were examined, 4 of which (disc area, rim area, cup/disc ratio, mean RNFL thickness) are presented in this paper...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28964806/comparison-of-glaucoma-progression-detection-by-optical-coherence-tomography-and-visual-field
#5
Xinbo Zhang, Anna Dastiridou, Brian A Francis, Ou Tan, Rohit Varma, David S Greenfield, Joel S Schuman, David Huang
PURPOSE: To compare longitudinal glaucoma progression detection using optical coherence tomography (OCT) and visual field (VF). DESIGN: Validity assessment METHOD: We analyzed subjects with more than 5 follow-up visits (every 6 months) in the multi-center Advanced Imaging for Glaucoma Study. Fourier-domain optical coherence tomography (OCT) was used to map the thickness of the peripapillary retinal nerve fiber layer (NFL) and ganglion cell complex (GCC). OCT-based progression detection was defined as a significant negative trend for either NFL or GCC...
September 27, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28964804/differences-in-oct-assessment-of-bruch-membrane-opening-compared-to-stereoscopic-photography-for-estimating-cup-to-disc-ratio
#6
Jean-Claude Mwanza, Linda Y Huang, Donald L Budenz, Wei Shi, Gintien Huang, Richard K Lee
PURPOSE: To compare the vertical and horizontal cup-to-disc ratio (VCDR, HCDR) by an updated optical coherence tomography (OCT) Bruch's membrane opening (BMO) algorithm and stereoscopic optic disc photograph readings by glaucoma specialists. DESIGN: Reliability analysis. METHODS: 195 eyes (116 glaucoma and 79 glaucoma suspects) of 99 patients with stereoscopic photos and OCT scans of the optic discs taken during the same visit were compared...
September 27, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28945815/clinical-management-outcomes-of-childhood-glaucoma-suspects
#7
Matthew B Greenberg, Carla J Osigian, Kara M Cavuoto, Ta C Chang
PURPOSE: To investigate the outcomes of childhood glaucoma suspects. DESIGN: Retrospective case series. METHODS: Records of childhood glaucoma suspects were identified using financial claims data; medical history, baseline biometric and exam findings were recorded. Conversion from suspect to glaucoma was determined based on the Childhood Glaucoma Research Network criteria. The study adheres to the tenets of the Declarations of Helsinki. RESULTS: 214 subjects were enrolled, with median age at initial presentation of 6...
2017: PloS One
https://www.readbyqxmd.com/read/28939691/5-year-disease-progression-of-patients-across-the-glaucoma-spectrum-assessed-by-structural-and-functional-tools
#8
Natasha Gautam Seth, Sushmita Kaushik, Savleen Kaur, Srishti Raj, Surinder Singh Pandav
BACKGROUND: Assessment of spectral-domain optical coherence tomography (SD-OCT) compared with visual fields, to detect progression across the glaucoma spectrum. METHODS: In this study, adult glaucoma suspects and patients, with baseline retinal nerve fibre layer (RNFL) thickness on SD-OCT and reliable visual field (VF) tests on Humphrey Field Analyser (HFA) prior to March 2010, were recruited. Functional and structural progression over at least 5 years was compared using Glaucoma Progression Analysis (GPA) and VF index (VFI) on HFA and Guided Progression Analysis (GPA-OCT) on SD-OCT, respectively...
September 22, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28937876/pilot-study-of-the-pulsatile-neuro-peripapillary-retinal-deformation-in-glaucoma-and-its-relationship-with-glaucoma-risk-factors
#9
Maribel Hidalgo-Aguirre, Santiago Costantino, Mark Richard Lesk
PURPOSE: To perform a pilot study of the neuro-peripapillary retinal tissue deformation during the cardiac cycle among healthy eyes, ocular hypertensive (OHT), open angle glaucoma suspect (OAG-S), and early open angle glaucoma (EOAG) patients using video rate optical coherence tomography (OCT) image series. METHODS: OCT line scan sequences of the same region of the optic nerve head (ONH) were obtained from 15 EOAG, 6 OHT, 10 OAG-S, and 10 healthy age-matched eyes...
September 22, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28915799/analysis-of-various-factors-affecting-pupil-size-in-patients-with-glaucoma
#10
Ji Woong Park, Bong Hui Kang, Ji Won Kwon, Kyong Jin Cho
BACKGROUND: Pupil size is an important factor in predicting post-operative satisfaction. We assessed the correlation between pupil size, measured by Humphrey static perimetry, and various affecting factors in patients with glaucoma. METHODS: In total, 825 eyes of 415 patients were evaluated retrospectively. Pupil size was measured with Humphrey static perimetry. Comparisons of pupil size according to the presence of glaucoma were evaluated, as were correlations between pupil size and various factors, including age, logMAR best corrected visual acuity (BCVA), retinal nerve fiber layer (RNFL) thickness, spherical equivalent, intraocular pressure, axial length, central corneal thickness, white-to-white, and the kappa angle...
September 16, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28903935/glaucoma-and-intraocular-pressure-in-epic-norfolk-eye-study-cross-sectional-study
#11
Michelle P Y Chan, David C Broadway, Anthony P Khawaja, Jennifer L Y Yip, David F Garway-Heath, Jennifer M Burr, Robert Luben, Shabina Hayat, Nichola Dalzell, Kay-Tee Khaw, Paul J Foster
Objectives To report the distribution of intraocular pressure (IOP) by age and sex and the prevalence of glaucoma.Design Community based cross sectional observational study.Setting EPIC-Norfolk cohort in Norwich and the surrounding rural and urban areas.Participants 8623 participants aged 48-92 recruited from the community who underwent ocular examination to identify glaucoma.Main outcome measures Prevalence and characteristics of glaucoma, distribution of IOP, and the sensitivity and specificity of IOP for case finding for glaucoma...
September 13, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28855629/location-of-the-central-retinal-vessel-trunk-in-the-laminar-and-prelaminar-tissue-of-healthy-and-glaucomatous-eyes
#12
Bo Wang, Katie A Lucy, Joel S Schuman, Hiroshi Ishikawa, Richard A Bilonick, Ian A Sigal, Larry Kagemann, Chen Lu, James G Fujimoto, Gadi Wollstein
Glaucoma is a leading cause of blindness that leads to characteristic changes in the optic nerve head (ONH) region, such as nasalization of vessels. It is unknown whether the spatial location of this vessel shift inside the ONH occurs within the lamina cribrosa (LC) or the prelaminar tissue. The purpose of this study was to compare the location of the central retinal vessel trunk (CRVT) in the LC and prelaminar tissue in living healthy and glaucomatous eyes. We acquired 3-dimensional ONH scans from 119 eyes (40 healthy, 29 glaucoma suspect, and 50 glaucoma) using optical coherence tomography (OCT)...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28832670/peripapillary-retinal-splitting-visualized-on-oct-in-glaucoma-and-glaucoma-suspect-patients
#13
Dilraj S Grewal, Daniel J Merlau, Pushpanjali Giri, Marion R Munk, Amani A Fawzi, Lee M Jampol, Angelo P Tanna
PURPOSE: To identify the risk factors for development of peripapillary retinal splitting (schisis) in patients with glaucoma or suspicion of glaucoma. SETTING: Glaucoma Clinic, Department of Ophthalmology, Northwestern University Feinberg School of Medicine, Chicago, IL. METHODS: In this institutional cross-sectional study, 495 patients (990 eyes) who had undergone spectral-domain optical coherence tomography (OCT Spectralis HRA-OCT, Heidelberg Engineering) optic nerve head (ONH) imaging and did not have identifiable optic nerve pits, pseudopits or coloboma were included...
2017: PloS One
https://www.readbyqxmd.com/read/28764889/can-home-monitoring-allow-earlier-detection-of-rapid-visual-field-progression-in-glaucoma
#14
Andrew J Anderson, Phillip A Bedggood, Yu Xiang George Kong, Keith R Martin, Algis J Vingrys
PURPOSE: Recent developments in electronic technology are making it possible to home monitor the sensitivity of the central visual field using portable devices. We used simulations to investigate whether the higher test frequency afforded by home monitoring improves the early detection of rapid visual field loss in glaucoma and how any benefits might be affected by imperfect compliance or increased variability in the home-monitoring test. DESIGN: Computer simulation, with parameter selection confirmed with a cohort study...
July 29, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28759054/the-association-between-retinal-vein-pulsation-pressure-and-optic-disc-haemorrhages-in-glaucoma
#15
Dong An, Philip House, Christopher Barry, Andrew Turpin, Allison M McKendrick, Balwantray C Chauhan, Siobhan Manners, Stuart L Graham, Dao-Yi Yu, William H Morgan
PURPOSE: To explore the potential relationship between optic disc haemorrhage, venous pulsation pressure (VPP), ocular perfusion pressures and visual field change in glaucomatous and glaucoma suspect eyes. MATERIALS AND METHODS: This prospective observational study examined 155 open angle glaucoma or glaucoma suspect eyes from 78 patients over 5 years. Patients were followed with 3 monthly non-mydriatic disc photographs, 6 monthly standard automated perimetry and annual ophthalmodynamometry...
2017: PloS One
https://www.readbyqxmd.com/read/28740736/capability-of-ophthalmology-residents-to-detect-glaucoma-using-high-dynamic-range-concept-versus-color-optic-disc-photography
#16
Mantapond Ittarat, Rath Itthipanichpong, Anita Manassakorn, Visanee Tantisevi, Sunee Chansangpetch, Prin Rojanapongpun
BACKGROUND: Assessment of color disc photograph (C-DP) is affected by image quality, which decreases the ability to detect glaucoma. High-dynamic-range (HDR) imaging provides a greater range of luminosity. Therefore, the objective of this study was to evaluate the capability of ophthalmology residents to detect glaucoma using HDR-concept disc photography (HDR-DP) compared to C-DP. DESIGN: Cross-sectional study. METHODS: Twenty subjects were classified by 3 glaucoma specialists as either glaucoma, glaucoma suspect, or control...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28734815/progressive-macula-vessel-density-loss-in-primary-open-angle-glaucoma-a-longitudinal-study
#17
COMPARATIVE STUDY
Takuhei Shoji, Linda M Zangwill, Tadamichi Akagi, Luke J Saunders, Adeleh Yarmohammadi, Patricia Isabel C Manalastas, Rafaella C Penteado, Robert N Weinreb
PURPOSE: To characterize the rate of macula vessel density loss in primary open-angle glaucoma (POAG), glaucoma-suspect, and healthy eyes. DESIGN: Longitudinal, observational cohort from the Diagnostic Innovations in Glaucoma Study. METHODS: One hundred eyes (32 POAG, 30 glaucoma-suspect, and 38 healthy) followed for at least 1 year with optical coherence tomography angiography (OCT-A) imaging on at least 2 visits were included. Vessel density was calculated in the macula superficial layer...
October 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28655730/costs-of-a-community-based-glaucoma-detection-programme-analysis-of-the-philadelphia-glaucoma-detection-and-treatment-project
#18
Laura T Pizzi, Michael Waisbourd, Lisa Hark, Harjeet Sembhi, Paul Lee, John E Crews, Jinan B Saaddine, Deon Steele, L Jay Katz
BACKGROUND: Glaucoma is the foremost cause of irreversible blindness, and more than 50% of cases remain undiagnosed. Our objective was to report the costs of a glaucoma detection programme operationalised through Philadelphia community centres. METHODS: The analysis was performed using a healthcare system perspective in 2013 US dollars. Costs of examination and educational workshops were captured. Measures were total programme costs, cost/case of glaucoma detected and cost/case of any ocular disease detected (including glaucoma)...
June 27, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28551166/24-2-visual-fields-miss-central-defects-shown-on-10-2-tests-in-glaucoma-suspects-ocular-hypertensives-and-early-glaucoma
#19
MULTICENTER STUDY
C Gustavo De Moraes, Donald C Hood, Abinaya Thenappan, Christopher A Girkin, Felipe A Medeiros, Robert N Weinreb, Linda M Zangwill, Jeffrey M Liebmann
PURPOSE: To investigate the prevalence of visual field defects in glaucomatous eyes, glaucoma suspects, and ocular hypertensives with 24-2 and 10-2 visual fields. DESIGN: Prospective, cross-sectional study. PARTICIPANTS: Patients with or suspected glaucoma tested with 24-2 and 10-2. Patients were classified into 3 groups on the basis of the presence of glaucomatous optic neuropathy (GON) and 24-2 visual field abnormalities: early glaucoma (GON and abnormal visual field, mean deviation >-6 decibels [dB]), glaucoma suspects (GON and normal visual field), and ocular hypertensives (normal disc, normal visual field, and intraocular pressure >22 mmHg)...
October 2017: Ophthalmology
https://www.readbyqxmd.com/read/28542536/comparison-of-matrix-frequency-doubling-technology-perimetry-and-standard-automated-perimetry-in-monitoring-the-development-of-visual-field-defects-for-glaucoma-suspect-eyes
#20
COMPARATIVE STUDY
Rongrong Hu, Chenkun Wang, Lyne Racette
BACKGROUND: Perimetry is indispensable for the clinical management of glaucoma suspects. Our goal is to compare the performance of standard automated perimetry (SAP) and Matrix frequency-doubling technology (FDT) perimetry in monitoring the development of visual field (VF) defects in glaucoma suspect eyes. METHODS: Longitudinal data of paired SAP and FDT from 221 eyes of 155 glaucoma suspects enrolled in the Diagnostic Innovations in Glaucoma Study or the African Descent and Glaucoma Evaluation Study were included...
2017: PloS One
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