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OCT for glaucoma optic nerve

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https://www.readbyqxmd.com/read/28430372/retinal-nerve-fibre-layer-thickness-is-reduced-in-metabolic-syndrome
#1
R Zarei, P Anvari, Y Eslami, G Fakhraie, M Mohammadi, A Jamali, M Afarideh, A Ghajar, S Heydarzade, A Esteghamati, S Moghimi
AIMS: To investigate retinal nerve fibre layer (RNFL) thickness in people with metabolic syndrome (MetS) and healthy controls. METHODS: A cross-sectional study was performed from March 2014 to January 2016. All participants underwent anthropometric and serological biochemical measurements, ophthalmological examination, and spectral-domain optical coherence tomography (SD-OCT). Individuals with elevated intraocular pressure, glaucoma, diabetic retinopathy and other ocular disorders were excluded...
April 21, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/28429427/the-assessment-of-optical-coherence-tomographic-parameters-in-subjects-with-a-positive-family-history-of-glaucoma
#2
Omer Karti, Bora Yuksel, Umut Duygu Uzunel, Eyyup Karahan, Mehmet Ozgur Zengin, Tuncay Kusbeci
PURPOSE: The aim was to compare the optical coherence tomographic (OCT) parameters of subjects with and without a family history of glaucoma to determine whether positive family history has an impact on retinal nerve fibre layer and ganglion cell complex analyses. METHODS: Forty eyes of 40 normal subjects with a proven positive family history (first-degree relatives) for primary open angle glaucoma (POAG) (study group) and age-matched 40 eyes of 40 control subjects without a family history for glaucoma (control group) were enrolled...
April 20, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28412067/trend-based-analysis-of-ganglion-cell-inner-plexiform-layer-thickness-changes-on-optical-coherence-tomography-in-glaucoma-progression
#3
Won June Lee, Young Kook Kim, Ki Ho Park, Jin Wook Jeoung
PURPOSE: To evaluate the rate of thinning in ganglion cell-inner plexiform layer (GCIPL) thickness by optical coherence tomography (OCT) in glaucomatous eyes and to use a trend-based approach to determine its diagnostic ability for detecting glaucoma progression. DESIGN: Prospective, observational study. PARTICIPANTS: Sixty-five patients with primary open-angle glaucoma with a minimum 3-year follow-up involving serial spectral-domain OCT measurement of GCIPL thickness...
April 12, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28410253/factors-associated-with-visual-field-progression-in-cirrus-optical-coherence-tomography-guided-progression-analysis-a-topographic-approach
#4
Joong Won Shin, Kyung Rim Sung, Jiyun Lee, Junki Kwon
PURPOSE: To identify factors associated with visual field (VF) progression in optical coherence tomography (OCT)-guided progression analysis (GPA) using a topographic approach. METHODS: Topographic components of OCT-GPA maps (Cirrus HD-OCT; Carl Zeiss Meditec) were classified according to location (temporal, superotemporal, superonasal, nasal, inferornasal, and inferotemporal), size (small, medium, and large), shape (wedge and irregular types), and pattern of retinal nerve fiber layer (RNFL) progression (widening, deepening, and new development)...
April 13, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28408038/temporal-relation-between-macular-ganglion-cell-inner-plexiform-layer-loss-and-peripapillary-retinal-nerve-fiber-layer-loss-in-glaucoma
#5
Young Kook Kim, Ahnul Ha, Kyeong Ik Na, Hae Jin Kim, Jin Wook Jeoung, Ki Ho Park
PURPOSE: To investigate the temporal relationship between inferior macular ganglion cell-inner plexiform layer (mGCIPL) loss and corresponding peripapillary retinal nerve fiber layer (pRNFL) defect on the optical coherence tomography (OCT) deviation map in glaucoma. DESIGN: Retrospective, observational study. PARTICIPANTS: A total of 151 patients with early-stage glaucoma (visual field [VF] mean deviation between -1.5 and -5.5 decibels [dB])...
April 10, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28405489/three-dimensional-optical-coherence-tomography-imaging-and-treatment-of-glaucomatous-optic-nerve-head-defects-associated-with-schisis-like-maculopathy
#6
Zafer Öztaş, Jale Menteş, Halil Ateş, Serhad Nalçacı
We present the three-dimensional (3D) spectral-domain optical coherence tomography (SD-OCT) findings of schisis-like maculopathy associated with structural changes of the optic nerve (ON) head as well as the treatment outcomes of a case of advanced glaucoma. In addition to ophthalmological examination, B-scan and 3D-SD-OCT images of the ON head, peripapillary retina, and the macula were obtained. The B-scan images only detected typical retinoschisis findings. However, the 3D-SD-OCT images of the ON head revealed defects of various sizes, shapes, and depths at the outer wall of the prelaminar and laminar regions of the ON canal...
April 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28383403/influence-of-the-lamina-cribrosa-on-the-rate-of-global-and-localized-retinal-nerve-fiber-layer-thinning-in-open-angle-glaucoma
#7
Hae-Young Lopilly Park, Sung In Kim, Chan Kee Park
The advent of optical coherence tomography (OCT) imaging allows identification of the structural contribution of the lamina cribrosa (LC) to glaucoma progression. This study aimed to determine the role of various LC features, such as the LC depth (LCD), LC thickness (LCT), and focal LC defects, on the future rate of progressive retinal nerve fiber layer (RNFL) thinning in patients with glaucoma. One hundred eighteen patients with glaucoma who had undergone at least 4 OCT examinations were included. Features of LC, including the LCD, LCT, and presence of focal LC defects, from serial scan of the optic disc using the enhanced depth imaging of Spectralis OCT; were analyzed at baseline...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28368998/diagnostic-ability-of-wide-field-retinal-nerve-fiber-layer-maps-using-swept-source-optical-coherence-tomography-for-detection-of-preperimetric-and-early-perimetric-glaucoma
#8
Won June Lee, Kyeong Ik Na, Young Kook Kim, Jin Wook Jeoung, Ki Ho Park
PURPOSE: To evaluate the diagnostic ability of wide-field retinal nerve fiber layer (RNFL) maps with swept-source optical coherence tomography (SS-OCT) for detection of preperimetric (PPG) and early perimetric glaucoma (EG). METHODS: One hundred eighty-four eyes, including 67 healthy eyes, 43 eyes with PPG, and 74 eyes with EG, were analyzed. Patients underwent a comprehensive ocular examination including red-free RNFL photography, visual field testing and wide-field SS-OCT scanning (DRI-OCT-1 Atlantis; Topcon, Tokyo, Japan)...
March 31, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28355173/glaucoma-diagnostic-capability-of-circumpapillary-retinal-nerve-fiber-layer-thickness-in-circle-scans-with-different-diameters
#9
Mark P Ghassibi, Jason L Chien, Thipnapa Patthanathamrongkasem, Ramiz K Abumasmah, Michael S Rosman, Alon Skaat, Celso Tello, Jeffrey M Liebmann, Robert Ritch, Sung Chul Park
PURPOSE: To compare varying circumpapillary optical coherence tomographic (OCT) scan diameters for glaucoma diagnosis. MATERIALS AND METHODS: Prospective, cross-sectional, observational study. Circumpapillary retinal nerve fiber layer thickness (RNFLT) was measured using spectral-domain OCT in 1 randomly selected eye. Scans with diameters of 3.5, 4.1, and 4.7 mm were obtained, each with 7 parameters: mean global (G) RNFLT and mean RNFLT for the temporal-inferior (TI), nasal-inferior (NI), temporal-superior (TS), nasal-superior (NS), nasal (N), and temporal (T) sectors...
April 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28300739/circumpapillary-ganglion-cell-complex-thickness-to-diagnose-glaucoma-a-pilot-study
#10
Yoshiyuki Kita, Norihisa Soutome, Daisuke Horie, Ritsuko Kita, Gaborá Hollό
PURPOSE: The purpose of this study is to evaluate the applicability of a new optical coherence tomography parameter, the circumpapillary ganglion cell complex (cpGCC) thickness for glaucoma diagnostics. SUBJECTS AND METHODS: The RS-3000 Advance SD-OCT (NIDEK, Aichi, Japan) was used to measure global and sector macular GCC (mGCC) thickness, circumpapillary retinal nerve fiber layer (cpRNFL) thickness, cpGCC, and circumpapillary total retina (cpTR) thickness in 1 eye of 48 preperimetric/early perimetric primary open-angle glaucoma patients and 28 healthy Japanese participants...
January 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28300644/the-connective-tissue-phenotype-of-glaucomatous-cupping-in-the-monkey-eye-clinical-and-research-implications
#11
REVIEW
Hongli Yang, Juan Reynaud, Howard Lockwood, Galen Williams, Christy Hardin, Luke Reyes, Cheri Stowell, Stuart K Gardiner, Claude F Burgoyne
In a series of previous publications we have proposed a framework for conceptualizing the optic nerve head (ONH) as a biomechanical structure. That framework proposes important roles for intraocular pressure (IOP), IOP-related stress and strain, cerebrospinal fluid pressure (CSFp), systemic and ocular determinants of blood flow, inflammation, auto-immunity, genetics, and other non-IOP related risk factors in the physiology of ONH aging and the pathophysiology of glaucomatous damage to the ONH. The present report summarizes 20 years of technique development and study results pertinent to the characterization of ONH connective tissue deformation and remodeling in the unilateral monkey experimental glaucoma (EG) model...
March 12, 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28291960/trabeculectomy-with-ologen-versus-mitomycin-c-in-juvenile-open-angle-glaucoma-a-1-year-study
#12
Fathi El-Sayyad, Heba Magdy Ahmed El-Saied, Mohamad Amr Salah Eddin Abdelhakim
BACKGROUND: We assessed bleb morphology and the intraocular pressure (IOP)-lowering effect of trabeculectomy with ologen compared to mitomycin C (MMC) in juvenile open-angle glaucoma (JOAG). METHODS: This is a prospective interventional comparative study conducted on 40 eyes (20 patients) with medically uncontrolled JOAG, randomly operating one eye for trabeculectomy with ologen (group A: 20 eyes) and the other with MMC (group B: 20 eyes). IOP measurement, SITA standard perimetry, and spectral domain optical coherence tomography (OCT) for retinal nerve fiber layer (RNFL) thickness were all done pre- and postoperatively...
2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28283025/ganglion-cell-inner-plexiform-layer-and-retinal-nerve-fiber-layer-thickness-according-to-myopia-and-optic-disc-area-a-quantitative-and-three-dimensional-analysis
#13
Sam Seo, Chong Eun Lee, Jae Hoon Jeong, Ki Ho Park, Dong Myung Kim, Jin Wook Jeoung
BACKGROUND: To determine the influences of myopia and optic disc size on ganglion cell-inner plexiform layer (GCIPL) and peripapillary retinal nerve fiber layer (RNFL) thickness profiles obtained by spectral domain optical coherence tomography (OCT). METHODS: One hundred and sixty-eight eyes of 168 young myopic subjects were recruited and assigned to one of three groups according to their spherical equivalent (SE) values and optic disc area. All underwent Cirrus HD-OCT imaging...
March 11, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28282698/-oct-angiography-of-the-glaucoma-optic-nerve
#14
C Lommatzsch, J M Koch, H Claußnitzer, C Heinz
Background Glaucoma is a major cause of blindness worldwide. One possible pathophysiological cause may be vascular dysregulation. Our aim was to investigate whether OCT angiography (OCTA) can detect modified flow density in glaucoma patients in the area of the optic disc. Methods A total of 68 eyes were examined by the OCTA system AngioVue™, including 34 eyes diagnosed with glaucoma and 34 healthy control eyes. Total peripapillary flow density was measured at two different levels of segmentation and also in each optic disc sector...
March 10, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28243926/comparing-three-different-modes-of-electroretinography-in-experimental-glaucoma-diagnostic-performance-and-correlation-to-structure
#15
Laura Wilsey, Sowjanya Gowrisankaran, Grant Cull, Christy Hardin, Claude F Burgoyne, Brad Fortune
PURPOSE: To compare diagnostic performance and structure-function correlations of multifocal electroretinogram (mfERG), full-field flash ERG (ff-ERG) photopic negative response (PhNR) and transient pattern-reversal ERG (PERG) in a non-human primate (NHP) model of experimental glaucoma (EG). METHODS: At baseline and after induction of chronic unilateral IOP elevation, 43 NHP had alternating weekly recordings of retinal nerve fiber layer thickness (RNFLT) by spectral domain OCT (Spectralis) and retinal function by mfERG (7F slow-sequence stimulus, VERIS), ff-ERG (red 0...
February 27, 2017: Documenta Ophthalmologica. Advances in Ophthalmology
https://www.readbyqxmd.com/read/28196732/peripapillary-and-macular-vessel-density-in-patients-with-glaucoma-and-single-hemifield-visual-field-defect
#16
Adeleh Yarmohammadi, Linda M Zangwill, Alberto Diniz-Filho, Luke J Saunders, Min Hee Suh, Zhichao Wu, Patricia Isabel C Manalastas, Tadamichi Akagi, Felipe A Medeiros, Robert N Weinreb
PURPOSE: To compare hemifield differences in the vessel density of the peripapillary and macula in open-angle glaucoma eyes with visual field (VF) defect confined to one hemifield using optical coherence tomography angiography (OCT-A). DESIGN: Cross-sectional study. PARTICIPANTS: A total of 58 eyes of 58 patients with glaucoma with VF loss confined to a single hemifield and 28 healthy eyes. METHODS: Retinal vasculature information was summarized as circumpapillary vessel density (cpVD) and perifoveal vessel density (pfVD)...
February 10, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28174676/a-digital-staining-algorithm-for-optical-coherence-tomography-images-of-the-optic-nerve-head
#17
Jean-Martial Mari, Tin Aung, Ching-Yu Cheng, Nicholas G Strouthidis, Michaël J A Girard
PURPOSE: To digitally stain spectral-domain optical coherence tomography (OCT) images of the optic nerve head (ONH), and highlight either connective or neural tissues. METHODS: OCT volumes of the ONH were acquired from one eye of 10 healthy subjects. We processed all volumes with adaptive compensation to remove shadows and enhance deep tissue visibility. For each ONH, we identified the four most dissimilar pixel-intensity histograms, each of which was assumed to represent a tissue group...
February 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28169924/retrograde-maculopathy-in-patients-with-glaucoma
#18
Jacqueline Brazerol, Milko E Iliev, René Höhn, Stephan Fränkl, Hilary Grabe, Mathias Abegg
PURPOSE: Macular optical coherence tomography (OCT) analysis can be used for quantitative measures of optic nerve atrophy at a location far from the optic nerve head. This recently led to the finding of microcystic macular edema (MME), that is vacuolar inclusions in the macular inner nuclear layer, in some glaucoma patients. The involvement of individual retinal layers is yet unclear in glaucoma. In this study we systematically investigated glaucoma-induced changes in macular layers to evaluate whether glaucoma-associated damage extends beyond the macular ganglion cell layer...
February 6, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28169920/relationship-between-oct-angiography-temporal-peripapillary-vessel-density-and-octopus-perimeter-paracentral-cluster-mean-defect
#19
Gábor Holló
PURPOSE OF THE STUDY: The purpose of the study was to investigate the relationship between optical coherence tomography angiography angioflow vessel-density (PAFD) measured in the retinal nerve fiber layer in the temporal peripapillary sector and the average of the spatially corresponding superior and inferior paracentral cluster mean defect values (mean paracentral MD) measured with Octopus perimetry. MATERIALS AND METHODS: Spaerman's correlation between temporal peripapillary PAFD acquired with the Angiovue OCT and mean paracentral MD measured with the Normal and tendency-oriented perimetry strategy of Octopus G2 perimetry, respectively, was determined on 1 eye of 13 healthy participants, 22 medically controlled ocular hypertensive, and 27 stable early to moderate glaucoma patients...
February 6, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28152106/relationship-between-optical-coherence-tomography-sector-peripapillary-angioflow-density-and-octopus-visual-field-cluster-mean-defect-values
#20
Gábor Holló
PURPOSE: To compare the relationship of Octopus perimeter cluster mean-defect (cluster MD) values with the spatially corresponding optical coherence tomography (OCT) sector peripapillary angioflow vessel-density (PAFD) and sector retinal nerve fiber layer thickness (RNFLT) values. METHODS: High quality PAFD and RNFLT images acquired on the same day with the Angiovue/RTVue-XR Avanti OCT (Optovue Inc., Fremont, USA) on 1 eye of 27 stable early-to-moderate glaucoma, 22 medically controlled ocular hypertensive and 13 healthy participants were analyzed...
2017: PloS One
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