*  Retinal vessel occlusion - RNIB - Supporting people with sight loss
There are two types of retinal blood vessels, arteries and veins. Either of these can become blocked and each of them can ... The visual loss caused by retinal vein and artery occlusions is painless. It is usual for only one eye to be involved at a time ... A retinal vessel occlusion is a blockage in the blood vessel of your eye that can result in sight loss. ... Retinal vessel occlusion A retinal vessel occlusion is a blockage in the blood vessel of your eye that can result in sight loss ...
  http://www.rnib.org.uk/eye-health-eye-conditions-z-eye-conditions/retinal-vessel-occlusion
*  OSA | Texton-based segmentation of retinal vessels
... the issue of automated analysis of retinal images is gaining more serious attention. We consider the problem of retinal vessel ... Automated segmentation of retinal blood vessels in spectral domain optical coherence tomography scans Matthäus Pilch, Yaroslava ... Automated segmentation of retinal blood vessels and identification of proliferative diabetic retinopathy Herbert F. Jelinek, ... Donald A. Adjeroh, Umasankar Kandaswamy, and J. Vernon Odom, "Texton-based segmentation of retinal vessels," J. Opt. Soc. Am. A ...
  https://www.osapublishing.org/josaa/abstract.cfm?URI=josaa-24-5-1384
*  Quantitative analysis of retinal vessel attenuation in eyes with retinitis pigmentosa. - PubMed - NCBI
In RP patients, the severity of visual field loss is correlated with retinal vessel attenuation. Quantitative retinal vessel ... Retinal vessel calibers were measured using a computer-based program as the central retinal artery and vein equivalent (CRAE ... Quantitative analysis of retinal vessel attenuation in eyes with retinitis pigmentosa.. Ma Y1, Kawasaki R, Dobson LP, Ruddle JB ... Retinal vessel attenuation is a key finding in the diagnosis of retinitis pigmentosa (RP), but there have been no studies to ...
  https://www.ncbi.nlm.nih.gov/pubmed/22661482
*  INABIS '98 - Location of Central Retinal Vessel Trunk Exit and Parapapillary Atrophy
Location of Central Retinal Vessel Trunk Exit and Parapapillary Atrophy Jonas, JB (Dept. Ophthalmology, Friedrich-Alexander ... We determined the position of the central retinal vessel trunk exit on the lamina cribrosa surface and measured the area of ... The longer is the distance to the central retinal vessel trunk exit, the more enlarged is parapapillary atrophy and the smaller ... To evaluate whether the position of the central retinal vessel trunk exit on the lamina cribrosa spatially correlates with the ...
  https://www.mcmaster.ca/inabis98/nemeth/jonas0257/
*  Total Retinal Blood Flow and Retinal Oxygen Saturation in the Major Retinal Vessels of Healthy Participants
... ... Afua Oteng-Amoako (2013). Total Retinal Blood Flow and Retinal Oxygen Saturation in the Major Retinal Vessels of Healthy ... Introduction: Oxygen delivery, or utilization, is a function of retinal blood flow and blood oxygen saturation. The retinal ... retinal blood SO2 in arterioles and venules and investigate the relationship between retinal blood SO2 and total retinal blood ...
  https://uwspace.uwaterloo.ca/handle/10012/7975
*  STUDIES ON DEVELOPING RETINAL VESSELS VII. FLUORIDE-INDUCED VASO-OBLITERATION AND ITS RELATION TO RETINAL MATURITY | British...
STUDIES ON DEVELOPING RETINAL VESSELS VII. FLUORIDE-INDUCED VASO-OBLITERATION AND ITS RELATION TO RETINAL MATURITY ... STUDIES ON DEVELOPING RETINAL VESSELS VII. FLUORIDE-INDUCED VASO-OBLITERATION AND ITS RELATION TO RETINAL MATURITY ...
  http://bjo.bmj.com/content/43/11/681
*  Correlation of low frequency waves in retinal vessel width and arterial blood pressure | IOVS | ARVO Journals
Methods : Retinal vessels were recorded by Dynamic Vessel Analyzer (IMEDOS Systems UG, Jena). Simultaneously, the arterial ... From the retinal vessel diameters, the equivalent values of arterial and venous vessel diameters CRAE and CRVE were calculated ... We investigated the temporal correlation of retinal vessel width and arterial blood pressure in the range of the low frequency ... Purpose : Static and dynamic retinal vessel analysis are promising tools for early risk evaluation of cardiovascular diseases. ...
  http://iovs.arvojournals.org/article.aspx?articleid=2562782
*  Retinal Vessel Calibers Predict Long-term Microvascular Complications in Type 1 Diabetes Mellitus: The Danish Cohort of...
We used semi-automated computer software to analyze vessel diameters on baseline retinal photos. Calibers of all vessels ... Retinal vessel calibers have been associated with the presence of microvascular complications but their long-term predictive ... Retinal Vessel Calibers Predict Long-term Microvascular Complications in Type 1 Diabetes Mellitus: The Danish Cohort of ... We examined retinal vessel calibers as 16-year predictors of diabetic nephropathy, neuropathy and proliferative retinopathy in ...
  http://diabetes.diabetesjournals.org/content/early/2014/06/09/db14-0227
*  OSA | Bidirectional Doppler Fourier-domain optical coherence tomography for measurement of absolute flow velocities in human...
Quantitative retinal-blood flow measurement with three-dimensional vessel geometry determination using ultrahigh-resolution ... Doppler optical coherence tomography allows for the measurement of absolute blood flow values in vivo in human retinal vessels. ... Automatic retinal blood flow calculation using spectral domain optical coherence tomography Hassan Wehbe, Marco Ruggeri, ... Doppler Fourier-domain optical coherence tomography for measurement of absolute flow velocities in human retinal vessels René M ...
  https://www.osapublishing.org/vjbo/abstract.cfm?uri=ol-33-24-2967
*  OSA | Novel non-contact retina camera for the rat and its application to dynamic retinal vessel analysis
We present a novel non-invasive and non-contact system for reflex-free retinal imaging and dynamic retinal vessel analysis in ... M. K. Ikram, J. C. M. Witteman, J. R. Vingerling, M. M. B. Breteler, A. Hofman, and P. T. V. M. de Jong, "Retinal vessel ... M. K. Ikram, J. C. M. Witteman, J. R. Vingerling, M. M. B. Breteler, A. Hofman, and P. T. V. M. de Jong, "Retinal vessel ... M. K. Ikram, J. C. M. Witteman, J. R. Vingerling, M. M. B. Breteler, A. Hofman, and P. T. V. M. de Jong, "Retinal vessel ...
  https://www.osapublishing.org/boe/abstract.cfm?uri=boe-2-11-3094
*  Fibroblast growth factor 21 administration suppresses pathologic retinal vessel growth in oxygen-induced retinopathy | IOVS |...
Fibroblast growth factor 21 administration suppresses pathologic retinal vessel growth in oxygen-induced retinopathy ... Fibroblast growth factor 21 administration suppresses pathologic retinal vessel growth in oxygen-induced retinopathy ... The percentage of retinal neovascular area over the total retinal area was quantified at P17. ... Fibroblast growth factor 21 administration suppresses pathologic retinal vessel growth in oxygen-induced retinopathy. Invest. ...
  https://iovs.arvojournals.org/article.aspx?articleid=2637596
*  Simultaneous dynamic retinal vessel analysis and pulsed anodal transcranial electrical stimulation at the eye | IOVS | ARVO...
Methods: Retinal vessel reactions were observed in 13 healthy volunteers (23.8±1.6 years) using the Dynamic Vessel Analyzer ( ... The retinal vessel responses were calculated by the DVA as the mean of the two measurement cycles and expressed in the ... This study tested the hypothesis that pulsed anodal TES at the eye evokes changes in the dynamic retinal vessel response to ... We propose to adapt these techniques to analyze the mechanisms of NVC in the retina using dynamic retinal vessel analysis. ...
  https://iovs.arvojournals.org/article.aspx?articleid=2336482
*  The Relationship of Retinal Vessel Caliber With Erectile Dysfunction in Patients With Type 2 Diabetes | IOVS | ARVO Journals
Retinal Vessel Diameters Change Within 1 Hour of Intracranial Pressure Lowering. Rodent Hyperglycemia-Induced Inner Retinal ... Retinal vessel diameter was measured from retinal photographs by trained graders using semiautomated software. ED was defined ... Permeability and patency of retinal blood vessels in experimental diabetes.. Correlation between Retinal Oscillatory Potentials ... Revised formulas for summarizing retinal vessel diameters. Curr Eye Res . 2003; 27: 143-149. [CrossRef] [PubMed] ...
  https://iovs.arvojournals.org/article.aspx?articleid=2127379
*  Detection of dynamic changes in retinal vessel caliber in vivo using steady-state fluorescein angiography | IOVS | ARVO Journals
Average diameter of 8 separate 0.5mm-long retinal vessel segments from different vessels were measured using ImageJ software ( ... bi-directional changes in mouse retinal vessel caliber in vivo. Data from a companion abstract (Nahmias, et al) suggests vessel ... To study factors that regulate ocular perfusion, we developed a method to measure in vivo changes in retinal vessel caliber in ... 100% oxygen resulted in a reduction in retinal vessel caliber (0.71-fold of baseline; N=4, p,0.0001) at 1 minute after ...
  https://iovs.arvojournals.org/article.aspx?articleid=2638822
*  Investigation of the correlation among diameter of retinal vessel and arteriosclerosis risk factors including...
The estimated retinal artery(CRAE:centaral retinal artery equivalent, the estimated retinal vein(CRVE:central retinal vein ... In this research, the correlation among diameter of retinal vessel and arteriosclerosis risk factors including ... Investigation of the correlation among diameter of retinal vessel and arteriosclerosis risk factors including ... Investigation of the correlation among diameter of retinal vessel and arteriosclerosis risk factors including ...
  https://iovs.arvojournals.org/article.aspx?articleid=2151069
*  Axial Length Variation Impacts on Superficial Retinal Vessel Density and Foveal Avascular Zone Area Measurements Using Optical...
... and retinal vein occlusion. Third, we did not examine the impact of magnification on deep retinal vessel density (DRVD). ... Quantification of vessel density in retinal optical coherence tomography angiography images using local fractal dimension. ... Purpose: To evaluate the impact of image magnification correction on superficial retinal vessel density (SRVD) and foveal ... Axial Length Variation Impacts on Superficial Retinal Vessel Density and Foveal Avascular Zone Area Measurements Using Optical ...
  https://iovs.arvojournals.org/article.aspx?articleid=2633357
*  Visualization of the Regression of the Hyaloid Vasculature and Retinal Vessel Formation in the Newborn Rat Using FITC/Dextran ...
The loss of vessels was gradual and it took several days for all parts of a particular vasculature to disappear. Retinal ... I.M. Evans, B.L. Bucher, A.J. Ocon, J.A. Tapley; Visualization of the Regression of the Hyaloid Vasculature and Retinal Vessel ... Visualization of the Regression of the Hyaloid Vasculature and Retinal Vessel Formation in the Newborn Rat Using FITC/Dextran ... Visualization of the Regression of the Hyaloid Vasculature and Retinal Vessel Formation in the Newborn Rat Using FITC/Dextran ...
  http://iovs.arvojournals.org/article.aspx?articleid=2402696
*  INDIGO @ UIC: Oxygen in Retinal Vessels
My research focuses on assessing oxygen tension in retinal blood vessels from phosphorescence lifetime imaging data. To acquire ... The level of retinal oxygenation is thought to play a significant role in retinal diseases, such as diabetic retinopathy and ... Imaging oxygen tension in the retinal vasculatures will provide information on fundamental mechanisms that implicate hypoxia in ... the development of retinal pathologies. The long-term goal of this project is to broaden knowledge of disease patho-physiology ...
  http://indigo.uic.edu/handle/10027/7469?show=full
*  Machine-Learning-Based Retinal Vessel Segmentation in Spectral-Domain Optical Coherence Tomography Volumes of Mice | IOVS |...
Machine-Learning-Based Retinal Vessel Segmentation in Spectral-Domain Optical Coherence Tomography Volumes of Mice ... Machine-Learning-Based Retinal Vessel Segmentation in Spectral-Domain Optical Coherence Tomography Volumes of Mice ... Having such an automated retinal vessel segmentation approach will greatly enhance the image-analysis possibilities of ... machine-learned combination of imaging SD-OCT information from multiple 3D retinal layers is more effective for retinal vessel ...
  http://iovs.arvojournals.org/article.aspx?articleid=2267398
*  IET Digital Library: Retinal vessel segmentation by improved matched filtering: evaluation on a new high-resolution fundus...
... and propose a novel and accurate method for segmenting retinal vessels. Our goal is to be able to segment blood vessels with ... Automated and accurate segmentation of the retinal blood vessel tree is one of the challenging tasks in the computer-aided ... All recent authors compare their vessel segmentation results to each other using only low-resolution retinal image databases. ... Our performance evaluation shows that the proposed blood vessel segmentation approach is at least comparable with recent state- ...
  http://digital-library.theiet.org/content/journals/10.1049/iet-ipr.2012.0455
*  Fluorescein Angiography and Retinal Vessel Oxygen Saturation in Patients with Proliferative Diabetic Retinopathy. | IOVS | ARVO...
Relative oxygen saturation of retinal vessels was analyzed with the Oxymap. Retinal vessels associated with areas of ... Fluorescein Angiography and Retinal Vessel Oxygen Saturation in Patients with Proliferative Diabetic Retinopathy. ... Fluorescein Angiography and Retinal Vessel Oxygen Saturation in Patients with Proliferative Diabetic Retinopathy. ... Methods: Following a previous study which demonstrated increased oxygen saturation in retinal vessels proportional to the ...
  http://iovs.arvojournals.org/article.aspx?articleid=2333163
*  Automated measurement of retinal blood vessel tortuosity | (2010) | Joshi | Publications | Spie
Automated measurement of retinal blood vessel tortuosity Author(s): Vinayak Joshi; Joseph M. Reinhardt; Michael D. Abramoff ... The three-dimensional retinal vascular pattern is mostly formed congenitally, but is then modified over life, in response to ... We developed a new quantitative metric for vascular tortuosity, based on the vessel's angle of curvature, length of the curved ... Abnormalities in the vascular pattern of the retina are associated with retinal diseases and are also risk factors for systemic ...
  http://spie.org/Publications/Proceedings/Paper/10.1117/12.844641
*  Influence of Flicker Frequency on Flicker-Induced Changes of Retinal Vessel Diameter | IOVS | ARVO Journals
Continuous Retinal Vessel Diameter Measurements: The Future in Retinal Vessel Assessment?. Dynamic Responses in Retinal Vessel ... Because retinal blood flow (RBF) in a main retinal vessel is equal to πD 2 V mean/4, where D is the diameter of the vessel and ... Measurement of retinal vessel D is based on adaptive algorithms that use these specific profiles. Whenever a specific vessel ... A retinal vessel analyzer (RVA; Zeiss, Jena, Germany) was modified to allow for continuous measurement of vessel diameter ...
  http://iovs.arvojournals.org/article.aspx?articleid=2123956
*  Systemic VEGF blockade does not alter retinal vessels u | Open-i
Systemic VEGF blockade does not alter retinal vessels ultrastructure or choriocapillaris fenestration.(A) TEM of a microvessel ... pone-0003554-g003: Systemic VEGF blockade does not alter retinal vessels ultrastructure or choriocapillaris fenestration.(A) ... pone-0003554-g003: Systemic VEGF blockade does not alter retinal vessels ultrastructure or choriocapillaris fenestration.(A) ... Carried out the analysis of retinal function via electroretinograms (Figure 5): ES. Participated in immunohistochemistry, ...
  https://openi.nlm.nih.gov/detailedresult.php?img=PMC2571983_pone.0003554.g003&req=4
*  Neuroretinal Function and Retinal Vessel Changes over One Year Are Altered by Long-Term Blood Glucose Change in Adolescent Type...
Neuroretinal Function and Retinal Vessel Changes over One Year Are Altered by Long-Term Blood Glucose Change in Adolescent Type ... Neuroretinal Function and Retinal Vessel Changes over One Year Are Altered by Long-Term Blood Glucose Change in Adolescent Type ... Neuroretinal Function and Retinal Vessel Changes over One Year Are Altered by Long-Term Blood Glucose Change in Adolescent Type ... we examined retinal vessel calibers. IT change was, marginally, negatively correlated with AC change (P=0.044) in the control ...
  http://iovs.arvojournals.org/article.aspx?articleid=2146349