keyword
MENU ▼
Read by QxMD icon Read
search

Nerve fibers layer

keyword
https://www.readbyqxmd.com/read/28098728/peripapillary-retinal-nerve-fiber-thickness-changes-after-vitrectomy-for-epiretinal-membrane-in-eyes-with-and-without-vitreous-detachment
#1
Cesare Mariotti, Michele Nicolai, Antonio Longo, Francesca Viti, Elisa Bambini, Andrea Saitta, Vittorio Pirani, Emanuele Orsini, Daniela Baruffa, Michele Reibaldi
PURPOSE: To compare the changes in postoperative peripapillary retinal nerve fiber layer (p-RNFL) thickness after vitrectomy for epiretinal membrane in eyes with preexisting posterior vitreous detachment (PVD) and eyes with surgically induced PVD. METHODS: This study included consecutive patients who underwent 25-gauge vitrectomy for epiretinal membrane. Eyes were divided, according to intraoperative PVD status, into a preexisting PVD group and surgically induced PVD group...
January 16, 2017: Retina
https://www.readbyqxmd.com/read/28097644/erratum-to-eur-j-ophthalmol-2002-12-1-1-4-and-eur-j-ophthalmol-2015-25-5-437-442
#2
(no author information available yet)
Erratum To: Eur J Ophthalmol. 2002 Jan-Feb;12(1):1-4. doi: 10.5301/EJO.2008.799. Prevalence of astigmatism among students in northern Greece. A.T. Mandalos, D.K. Peios, T.A. Mavrakanas, V.A. Golias, K.G. Megalou, K.A. Delidou, A.C. Gregoriadou, B.C. Katsougiannopoulos PMID: 11936436 [PubMed - indexed for MEDLINE]We inform our readers that in the author list the full name of one author (T.A. Mavracanas) was published incorrectly. We supply the correct author listing and apologize to the readers. Eur J Ophthalmol...
December 29, 2016: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28096653/applicability-of-automatic-spectral-domain-optical-coherence-tomography-for-glaucoma-mass-screening
#3
Tadashi Nakano, Takeshi Hayashi, Toru Nakagawa, Toru Honda, Satoshi Owada, Hitoshi Endo, Masayuki Tatemichi
PURPOSE: To perform a preliminary evaluation of the applicability of automatic spectral domain optical coherence tomography (ASD-OCT) for glaucoma mass screening in a population-based setting. METHODS: Information using ASD-OCT (thicknesses of the macular retinal nerve fiber layer [mRNFL], disc retinal nerve fiber layer [dRNFL], ganglion cell layer [GCL] + inner plexiform layer [IPL]; GCL+, and ganglion cell complex [GCL + IPL + RNFL; GCL++]) was obtained from 245 eyes of 123 glaucomatous subjects and 1,454 eyes of 727 normal subjects...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28095089/comparative-data-on-sd-oct-for-a-retinal-nerve-fiber-layer-and-retinal-macular-thickness-in-a-large-cohort-with-marfan-syndrome
#4
WanWan Xu, Sudhi P Kurup, Amani A Fawzi, Mary K Durbin, Irene H Maumenee, Marilyn B Mets
PURPOSE: To report the distribution of macular and optic nerve topography in the eyes of individuals with Marfan syndrome aged 8-56 years using spectral domain optical coherence tomography (SD-OCT). METHODS: Thirty-three patients with Marfan syndrome underwent a full eye examination including slit-lamp biomicroscopy, indirect ophthalmoscopy, and axial length measurement; and SD-OCT measurements of the retinal nerve fiber layer (RNFL) and macular thickness. RESULTS: For patients between the ages of 8 and 12 years, the average RNFL thickness is 98 ± 9 μm, the vertical cup to disc (C:D) ratio is 0...
January 17, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28094585/relationship-between-plasma-homocysteine-level-and-glaucomatous-retinal-nerve-fiber-layer-defect
#5
Jae Yeun Lee, Joon Mo Kim, In Tae Kim, Chung Kwon Yoo, Yu Sam Won, Jung Hoon Kim, Hyun Seok Kwon, Ki Ho Park
AIMS: To investigate the association between plasma homocysteine levels and glaucomatous retinal nerve fiber layer (RNFL) defect in South Korean population. MATERIALS AND METHODS: This retrospective cross-sectional study included subjects who underwent screening at Kangbuk Samsung Hospital Health Screening Center between August 2012 and July 2013. Subjects underwent physical examination and provided samples for laboratory analysis of homocysteine. Subjects were divided equally into four quartiles (Qs) based on plasma homocysteine level...
January 17, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28094584/cytoskeletal-alteration-and-change-of-retinal-nerve-fiber-layer-birefringence-in-hypertensive-retina
#6
Xiang-Run Huang, Robert W Knighton, Ye Z Spector, William J Feuer
PURPOSE: Glaucoma damages the retinal nerve fiber layer (RNFL). Both RNFL thickness and retardance can be used to assess the damage, but birefringence, the ratio of retardance to thickness, is a property of the tissue itself. This study investigated the relationship between axonal cytoskeleton and RNFL birefringence in retinas with hypertensive damage. MATERIALS AND METHODS: High intraocular pressure (IOP) was induced unilaterally in rat eyes. RNFL retardance in isolated retinas was measured...
January 17, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28093579/progression-of-transsynaptic-retinal-degeneration-with-spectral-domain-optical-coherence-tomography
#7
Stephen G Schwartz, Armando Monroig, Harry W Flynn
PURPOSE: To illustrate the progression of retrograde transsynaptic retinal degeneration using spectral- domain optical coherence tomography (SD-OCT). OBSERVATIONS: A 60 year-old man with a stroke was followed over a 17-month period using SD-OCT of the macula, ganglion cell layer (GCC), and retinal nerve fiber layer. Transsynaptic retinal degeneration progressed over this time. CONCLUSIONS AND IMPORTANCE: Retrograde transsynaptic retinal degeneration may occur in patients with homonymous visual field loss caused by post-geniculate neurologic disease...
April 2017: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/28092529/sub-category-classifiers-for-multiple-instance-learning-and-its-application-to-retinal-nerve-fiber-layer-visibility-classification
#8
Siyamalan Manivannan, Caroline Cobb, Stephen Burgess, Emanuele Trucco
We propose a novel multiple instance learning method to assess the visibility (visible/not visible) of the retinal nerve fiber layer (RNFL) in fundus camera images. Using only image-level labels, our approach learns to classify the images as well as to localize the RNFL visible regions. We transform the original feature space to a discriminative subspace, and learn a region-level classifier in that subspace. We propose a margin-based loss function to jointly learn this subspace and the region-level classifier...
January 16, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28088508/relationship-between-central-retinal-vessel-trunk-location-and-visual-field-loss-in-glaucoma
#9
Mengyu Wang, Hui Wang, Louis R Pasquale, Neda Baniasadi, Lucy Q Shen, Peter J Bex, Tobias Elze
PURPOSE: To study the relationship between horizontal central retinal vessel trunk location (CRVTL) on glaucomatous optic discs and sector-specific visual field (VF) loss. DESIGN: Retrospective, cross-sectional study. METHODS: CRVTL of 421 eyes from 421 patients was manually tracked on the horizontal optic disc axis on fundus images. Focal circumpapillary retinal nerve fiber layer thickness (cpRNFLT) measurements were extracted from optical coherence tomography (OCT)...
January 11, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28087348/the-eyes-of-children-with-celiac-disease
#10
Arzu Seyhan Karatepe Hashas, Orhan Altunel, Eylem Sevınc, Necati Duru, Bedirhan Alabay, Yasemin Altuner Torun
PURPOSE: To determine possible eye involvement in pediatric patients with celiac disease. METHODS: Children (aged 5-18 years) with classic celiac disease and sex- and age-matched controls were included. In addition to a complete ophthalmologic examination, all patients were scanned by a Scheimpflug camera and spectral domain optical coherence tomography, and Schirmer and break-up time (BUT) tests were performed. Data were evaluated by paired t test, with a P value of <0...
January 10, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28079657/diagnostic-capability-of-peripapillary-retinal-volume-measurements-in-glaucoma
#11
Huseyin Simavli, Linda Yi-Chieh Poon, Christian J Que, Yingna Liu, Mustafa Akduman, Edem Tsikata, Johannes F de Boer, Teresa C Chen
PURPOSE: To determine the diagnostic capability of spectral domain optical coherence tomography peripapillary retinal volume (RV) measurements. MATERIALS AND METHODS: A total of 156 patients, 89 primary open-angle glaucoma and 67 normal subjects, were recruited. Spectral domain optical coherence tomography peripapillary RV was calculated for 4 quadrants using 3 annuli of varying scan circle diameters: outer circumpapillary annuli of circular grids 1, 2, and 3 (OCA1, OCA2, OCA3)...
January 10, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28079654/retinal-oximetry-in-subjects-with-glaucomatous-hemifield-asymmetry
#12
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/28078992/smoking-and-eye-pathologies-a-systemic-review-part-ii-retina-diseases-uveitis-optic-neuropathies-thyroid-associated-orbitopathy
#13
Małgorzata Nita, Andrzej Grzybowski
BACKGROUND: Tobacco smoking has detrimental influence on human health. AIM: The analysis of influence of tobacco smoking on retina diseases, uveitis, optic neuropathies, and thyroid-associated orbitopathy in adults and children. METHODS: A comprehensive review of the literature performed through MEDLINE and PubMed searches, covering the years 2000-2016. RESULTS: In adults, tobacco smoking is a strong risk factor for age-related macular degeneration, polypoidal choroidal vasculopathy, uveitis and inflamed cystoid macular edema as well as Grave`s ophthalmopathy...
January 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28078103/the-potential-of-spectral-domain-optical-coherence-tomography-imaging-based-retinal-biomarkers
#14
REVIEW
Prateep Phadikar, Sandeep Saxena, Surabhi Ruia, Timothy Y Y Lai, Carsten H Meyer, Dean Eliott
BACKGROUND: Biomarker", a merged word of "biological marker", refers to a broad subcategory of medical signs that objectively indicate the state of health, and well-being of an individual. Biomarkers hold great promise for personalized medicine as information gained from diagnostic or progression markers can be used to tailor treatment to the individual for highly effective intervention in the disease process. Optical coherence tomography (OCT) has proved useful in identifying various biomarkers in ocular and systemic diseases...
2017: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/28073365/neurophthalmological-conditions-mimicking-glaucomatous-optic-neuropathy-analysis-of-the-most-common-causes-of-misdiagnosis
#15
Diego Torres Dias, Michele Ushida, Roberto Battistella, Syril Dorairaj, Tiago Santos Prata
BACKGROUND: To analyze the most common neurophthalmological conditions that may mimic glaucomatous optic neuropathy and to determine which most often lead to misdiagnosis when evaluated by a glaucoma specialist. METHODS: We reviewed the charts of consecutive patients with optic neuropathies caused by neurophthalmological conditions screened in a single Eye Clinic within a period of 24 months. Within these enrolled patients, we selected the eyes whose fundoscopic appearance could resemble glaucoma based in pre-defined criteria (vertical cup-to-disc ratio ≥0...
January 10, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28068662/evaluation-of-the-macular-ganglion-cell-inner-plexiform-layer-and-the-circumpapillary-retinal-nerve-fiber-layer-in-early-to-severe-stages-of-glaucoma-correlation-with-central-visual-function-and-visual-field-indexes
#16
Maria Pilar Bambo, Noemi Güerri, Blanca Ferrandez, Beatriz Cameo, Isabel Fuertes, Vicente Polo, Elena Garcia-Martin
OBJECTIVES: To compare the circumpapillary retinal nerve fiber layer (cpRNFL) and the macular ganglion cell-inner plexiform layer (GCIPL) in glaucoma patients at different disease stages and to evaluate correlations between optical coherence tomography (OCT) parameters with central visual function and visual field (VF) indexes. PATIENTS AND METHODS: One hundred forty patients were included in this prospective cross-sectional study. Subjects diagnosed with chronic open-angle glaucoma and 20/40 or better vision were recruited and classified as having early, moderate, or severe VF defects based on Hodapp-Parrish-Anderson criteria...
January 10, 2017: Ophthalmic Research
https://www.readbyqxmd.com/read/28068370/visualization-of-radial-peripapillary-capillaries-using-optical-coherence-tomography-angiography-the-effect-of-image-averaging
#17
Shelley Mo, Erika Phillips, Brian D Krawitz, Reena Garg, Sarwat Salim, Lawrence S Geyman, Eleni Efstathiadis, Joseph Carroll, Richard B Rosen, Toco Y P Chui
OBJECTIVES: To assess the effect of image registration and averaging on the visualization and quantification of the radial peripapillary capillary (RPC) network on optical coherence tomography angiography (OCTA). METHODS: Twenty-two healthy controls were imaged with a commercial OCTA system (AngioVue, Optovue, Inc.). Ten 10x10° scans of the optic disc were obtained, and the most superficial layer (50-μm slab extending from the inner limiting membrane) was extracted for analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28062917/the-enteric-nervous-system-and-the-musculature-of-the-colon-are-altered-in-patients-with-spina-bifida-and-spinal-cord-injury
#18
Marjanne den Braber-Ymker, Martin Lammens, Michel J A M van Putten, Iris D Nagtegaal
Neurogenic bowel dysfunction occurs in a large percentage of adult patients with spina bifida (SB) and spinal cord injury (SCI), significantly affecting their quality of life. Although bowel motility is autonomously regulated by the enteric nervous system (ENS), disruption of the modulation of the ENS by extrinsic innervation as present in many patients with SB and SCI might lead to motility disorders. In order to gain insight in the pathophysiology, we studied histological changes of the neuromuscular structures in the colon of SB and SCI patients...
January 6, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28054250/pupil-cycle-time-as-indicator-of-visual-pathway-dysfunction-in-multiple-sclerosis
#19
Eyyup Karahan, Omer Karti, Aslı Koskderelioglu, Dilek Top Karti, Murat Uyar, Murat Yildirim Kale, Muhtesem Gedizlioglu
To evaluate the value of pupil cycle time (PCT) as an indicator of optic nerve dysfunction in patients with multiple sclerosis (MS), 42 patients with MS and 35 control subjects were included to the study. Patients with MS with a history of ON were accepted as group 1, without a history of ON as group 2 and healthy control subjects as group 3. Groups were compared with Chi-square and one-way ANOVA tests. Correlations of PCT results with age, best corrected visual acuity, duration of MS, visual field (VF) test, visual evoked potential (VEP) latans, retinal nerve fiber layer (RNFL), and ganglion cell layer-inner plexiform layer (GCL-IPL) thicknesses were analyzed...
January 4, 2017: Acta Neurologica Belgica
https://www.readbyqxmd.com/read/28054212/assessing-posterior-ocular-structures-in-%C3%AE-thalassemia-minor
#20
Hasan Basri Arifoglu, Bekir Kucuk, Necati Duru, Orhan Altunel, Ahmet Gulhan, Mustafa Ozen, Bilal Aygun, Mustafa Atas
PURPOSE: The aim of this study was to investigate the effect of β-thalassemia minor on choroidal, macular, and peripapillary retinal nerve fiber layer thickness. METHODS: To form the sample, we recruited 40 patients with β-thalassemia minor and 44 healthy participants. We used spectral-domain optical coherence tomography to take all measurements of ocular thickness, as well as measured intraocular pressure, axial length, and central corneal thickness. We later analyzed correlations of hemoglobin levels with ocular parameters...
January 4, 2017: International Ophthalmology
keyword
keyword
118399
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"