Manual of ocular fundus examination , Manual of ocular fundus examination , کتابخانه دیجیتال جندی شاپور اهواز
45 year old man was told to come in because of white spots on their retina. He now has to take his glasses off to read labels. He has always had trouble with oncoming headlights messing up his vision for a short time. VA OD: cc20/20 NscJ1 OS: cc20/20 NscJ1+ Pisciform lesions in the macula of both eyes. ...
We present a 3D reconstruction of retinal blood vessel trees using two views of fundus images. The problem is addressed by using well known computer vision techniques which consider: 1) The recovery of camera-eyeball model parameters by an auto-calibration method. The camera parameters are found via the solution of simplified Kruppa equations, based on correspondences found by a LMedS optimisation correlation between pairs of eight different views. 2) The extraction of blood vessels and skeletons from two fundus images. 3) The matching of corresponding points of the two skeleton trees. The trees are previously labelled during the analysis of 2D binary images. Finally, 4) the lineal triangulation of matched correspondence points and the surface modelling via generalised cylinders using diameter measurements extracted from the 2D binary images. The method is nearly automatic and it is tested with 2 sets of 10 fundus retinal images, each one taken from different subjects. Results of 3D vein and ...
Featuring over 250 illustrations, this detailed full-color textbook provides up-to-date information on the use of fundus autofluorescence imaging in the evaluation of retinal disease.
Featuring over 250 illustrations, this detailed full-color textbook provides up-to-date information on the use of fundus autofluorescence imaging in the evaluation of retinal disease.
Bioimaging using endogenous cell fluorescence, without any external biomarkers makes it possible to explore cells and tissues in their original native state, also in vivo. In order to be informative, this label-free method requires careful multispectral or hyperspectral recording of autofluorescence images followed by unsupervised extraction (unmixing) of biochemical signatures. The unmixing is difficult due to the scarcity of biochemically pure regions in cells and also because autofluorescence is weak compared with signals from labelled cells, typically leading to low signal to noise ratio. Here, we solve the problem of unsupervised hyperspectral unmixing of cellular autofluorescence by introducing the Robust Dependent Component Analysis (RoDECA). This approach provides sophisticated and statistically robust quantitative biochemical analysis of cellular autofluorescence images. We validate our method on artificial images, where the addition of varying known level of noise has allowed us to quantify
Alsaffar, Fatimah (2017) The Molecular Characterisation of TIMP3 Mutations Responsible for Sorsbys Fundus Dystrophy: is there a link to Age-related Macular Degeneration. PhD thesis, The University of Sheffield. ...
Background: Chronic kidney disease (CKD) affects 10% - 16% of the adult population. Although ocular findings related to renal insufficiency include cataract, conjunctival calcification, lid edema, conjunctival pallor and xanthalesma, by far the most important is retinopathy. Objective: To evaluate the ocular fundus abnormalities in pre-dialytic chronic kidney disease patients of the adult population. Methodology: This cross-sectional observational study was conducted in the Department of Nephrology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh from April 2012 to March 2014. A total of 100 hospital admitted CKD patients were purposively selected for this study. Age, gender, blood pressure, Body Mass Index (BMI), 24 hours Urinary Total Protein (UTP), haemoglobin level, serum creatinine, serum cholesterol, serum triglyceride and color fundus photography findings of both eyes were recorded for each patient. Inter-group comparisons were made between patients with retinopathy and
Purpose : Nano-materials have been used widely applied for medical research because of its small size in recent years, however it is a virgin area in the field of ophthalmology. We created a new Silver-oxides core-shell nanoprisms ([email protected] NPs) -Fluorescein isothiocyanate (FITC) that be excited the fluorescence signal by 488nm. The purpose of this study was to demonstrate Ag @oxides nanoprisms can be used as a new effective agent in fundus fluorescein angiography (FFA). Methods : Ag NPs were synthesized using a seed-mediated procedure. [email protected] NPs were prepared via a simple sol-gel route. The thickness of the oxides shell can be precisely tuned from 1 to 15 nm through changing the reaction time and amount of oxides sol-gel precursor. Cytotoxicity of Ag NP were tested in OCM-1 cells using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. OCM-1 cells were incubated with [email protected] NPs for 24 h and then imaged with the fluorescence microscope. Fundus of C57BL/6J mice were ...
CMV retinitis typically presents with focal areas of retinal necrosis with primary lesions usually located adjacent to blood vessels, secondary to hematogenous spread of the virus [10]. On funduscopic examination, the appearance of CMV retinitis can range from a dry-appearing irregular and granular border with satellite lesions to an edematous and confluent area of thick, yellow-white necrosis associated with retinal hemorrhages and vascular sheathing [10].. Vascular involvement in CMV retinitis can result in vascular sheathing. Exudates around retinal vessels, more commonly veins, can result in focal areas of fluffy white cuffing or sheathing, with or without skip areas [11]. When the perivascular sheathing is severe, the retinal arteries and veins appear frosted, and the term "frosted branch angiitis" is used to describe this entity [12]. Kyrieleis plaques can be differentiated from vascular sheathing and frosted branch angiitis by its clinical and fluorescein angiographic features. Kyrieleis ...
FLUORESCEIN ANGIOGRAM OF EYE Photo essay at the hospital of Meaux (77), France. Department of ophtalmology. Mydriatic fundus camera to undertake a fundus oculi and a retinal angiography. On screen a diabetic retinopathy. - Stock Image C004/0835
Results Twelve infants with a variety of proliferative retinopathies underwent UWF-IV-FFA over a 7-month period. The mean age was 3.4 months (range 2-6 months) and the mean image acquisition time was 4 min (range 3-5). Pseudocolour fundus images and the venous, recirculation and late phases of UWF-IV-FFA were captured successfully in all infants (100%). Choroidal and arterial phases were captured in one (8.3%) and 10 (83.3%) infants, respectively. Image artefacts due to eyelashes and corneal desiccation occurred in nine (75%) and six (50%) infants, respectively. No adverse medical problems were noted.. ...
TY - JOUR. T1 - Ophthalmic diagnosis using deep learning with fundus images - A critical review. AU - Sengupta, Sourya. AU - Singh, Amitojdeep. AU - Leopold, Henry A.. AU - Gulati, Tanmay. AU - Lakshminarayanan, Vasudevan. PY - 2020/1. Y1 - 2020/1. N2 - An overview of the applications of deep learning for ophthalmic diagnosis using retinal fundus images is presented. We describe various retinal image datasets that can be used for deep learning purposes. Applications of deep learning for segmentation of optic disk, optic cup, blood vessels as well as detection of lesions are reviewed. Recent deep learning models for classification of diseases such as age-related macular degeneration, glaucoma, and diabetic retinopathy are also discussed. Important critical insights and future research directions are given.. AB - An overview of the applications of deep learning for ophthalmic diagnosis using retinal fundus images is presented. We describe various retinal image datasets that can be used for deep ...
Atlas of diseases of the ocular fundus , Atlas of diseases of the ocular fundus , کتابخانه دیجیتال دانشگاه علوم پزشکی تهران
Full clinical examination and fundus autofluorescence (AF) imaging was undertaken in a cohort of 68 patients. The baseline data were compared with those at follow-up. Patients were classified into three AF subtypes: type 1 had a localised low signal at the fovea surrounded by a homogeneous background; type 2 had a localised low signal at the macula surrounded by a heterogeneous background with numerous foci of abnormal signal; type 3 had multiple low signal areas at the posterior pole with a heterogeneous background. At baseline, there were 19 patients with type 1, 41 with type 2, and 8 with type 3. The areas of reduced AF signal were measured with custom software and a yearly rate of atrophy enlargement (RAE) was calculated. Molecular screening of ABCA4 was undertaken.. ...
The general area of research in which this project has been designed is that of retinal degeneration related to mutations in the ABCR gene, responsible of Stargardt disease/fundus flavimaculatus retinal dystrophy (STD/FF). STG/FF is one of the major causes of vision impairment in the young age. STG/FF originates typically from the dysfunction and loss of cone and rod photoreceptors, developing through a photo-oxidative mechanism. The major disease locus is the central retina, i.e. the macula, whose neurons have the highest density and underlie critical functions such as visual acuity, color vision and contrast sensitivity. There is currently no cure for STG/FF. Recent experimental findings indicate that Saffron, derived from the pistils of Crocus Sativus, may have a role as a retinal neuro-protectant against oxidative damage. The stigmata of Crocus sativus contain biologically high concentrations of chemical compounds including crocin, crocetin, whose multiple C=C bonds provide the antioxidant ...
Stargardt disease is also known as Stargardt macular dystrophy, juvenile macular dystrophy and fundus flavimaculatus. It is an inherited eye condition that affects your macula which is the tiny central part of your retina, the light-sensitive layer at the back of your eye.
... Choose from over 500,000 Posters and Art Prints. Value Framing, Fast Delivery, 100% Satisfaction Guarantee.
... Choose from over 500,000 Posters and Art Prints. Value Framing, Fast Delivery, 100% Satisfaction Guarantee.
Trouvaille Fundus Camera Équipement RFP For Sale, ou Wanted du plus grand marché médical déquipement des mondes. DOTmed.com a un des plus grands choix de nouveau, utilisés, et refourbis Fundus Camera équipement sur le marché.
Photography Jobs gives you the information you need about summer photography jobs in photography assistant jobs birmingham al sydney photography jobs - Photography Jobs is THE Solution for summer photography jobs information - See it for yourself right this minute....
6. LABELLING The label states в thenumberofmicrogramsofPRPperhumandose; в thetypeandnominalamountofcarrierproteinpersingle human dose.
18. (b) Fundoscopic photo shows that propranolo l ectatic retina nasal to the disk is out of focus visual input on this part of the retina is also poorly focused and therefore sensitivity is reduced.
Zheng Y, VanderBeek B, Xiao R, Daniel E, Stambolian D, Maguire M, OBrien J, Gee J: Retrospective illumination correction of retinal fundus images from gradient distribution sparsity. Biomedical Imaging (ISBI), 2012 9th IEEE International Symposium on IEEE. Page: 972-975, May 2012 ...
A sophisticated trainer for teaching and practising the use of an ophthalmoscope, examining the ocular fundus and identifying diseases and conditions within the eye.
As Nikon stands for quality so is Mr. Anands expertise synonymous to precision and setting new standards in photography. We have great memories of working with Mr. Anand in the last two years and it has benefitted Nikon to promote photography culture in India. We have done various courses and workshops under the banner of Nikon School with him which were highly appreciated by photography lovers. The best part about Mr. Anand is that he knows the pulse of his audience, understands the issues and addresses them in their tone and manner. Nikon wishes much success to Mr. Adarsh Anand and will continue to have such valuable association with him in future as well. ". ...
Contact Shoops Photography in Folsom on WeddingWire. Browse Photography prices, photos and 31 reviews, with a rating of 4.9 out of 5
Portable and affordable professionals choice. Smartscope PRO fundus camera is lightweight and can also be integrated with Fluorescein Angiography module.
Night photography is a mystery for many new photographers, and experienced ones alike. If you fall into that category, our new ultimate guide to night photography is here to help.
Hotcourses has 99 of the best Photography courses & professionally qualified Blackburn With Darwen training - Start the top Photography courses today
Guide to using a teleconverter for macro and supermacro underwater photography, including teleconverter tips with a 60mm and 100mm lenses for the Kenko and Tamron models.
Check out Justins entry to the LensCulture Street Photography Awards 2016! Share this post and help discover the best photography from all over the world! #lensculture
Check out Ezras entry to the LensCulture Street Photography Awards 2016! Share this post and help discover the best photography from all over the world! #lensculture
Learn foundational skills to specialized photography techniques. Check out all the great photography tips and tricks for photographers of all skill levels.
Learn foundational skills to specialized photography techniques. Check out all the great photography tips and tricks for photographers of all skill levels.
Are you a budding photographer? Think you have an eye for catching beautiful images? Then enter your work into myCornwalls photography competition for a chance to have your photos published in the February/March edition of the magazine and online with your credit/byline! The theme is A Cornish Winter ...
Huh. So the sun is behind them but somehow I still dont think I got it right. Ah well, the subjects are still cute so well call it a day.. Someday, I will take that photography class I keep talking about. That day will be when I remember to register before the class fills up. Hell might freeze over first.. ...
Ψάχνετε φωτογράφο ? Στη Photo-Synthesis Photography μπορούμε και παρέχουμε υπηρεσίες υψηλής ποιότητας σε ότι αφορά τη φωτογράφιση και βιντεοσκόπηση Γάμων, Βαπτίσεων και Εκδηλώσεων. γαμος, βαπτιση, φωτογραφος, Βολος
Ψάχνετε φωτογράφο ? Στη Photo-Synthesis Photography μπορούμε και παρέχουμε υπηρεσίες υψηλής ποιότητας σε ότι αφορά τη φωτογράφιση και βιντεοσκόπηση Γάμων, Βαπτίσεων και Εκδηλώσεων. γαμος, βαπτιση, φωτογραφος, Βολος
A while back I asked about UV photography and we didnt get too far. This guy has. Very dangerous. http://photoextremist.com/ultraviolet-induced-visible-fluorescence-photography-tutorial
Fotografie Photography 2009 Bloed Blood Reinier Gerritsen Bloed Blood Be kind to me was de zin die Henry Kissinger uitsprak een seconde voordat hij door Richard Avedon gefotografeerd werd. Van origine
What or where is B&H? Ive been reading about this place everywhere but have no clue what the address to it is. Please help!
C&C welcomed and appreciated. I just picked up my new camera not too long ago. I stepped up to an XSi from a Sony a200. #1. [IMG] #2. [IMG] #3....
My four year old Micron-badged Trinitron monitor is showing tearing along the top edge of the screen. So I figure its time to buy a new monitor.:deal
My photography website with galleries of my images together with tips, tutorials, news of the latest photography equipment and interesting articles.
OH MY GAWDDDD THIS IS SO FREAKING COOL!!! I wish they sold these things instead of it being a self made thing. (there is a video in the link)...
Heres what Ive been doing photographically lately: Just having fun. It feels like a big change, somehow. Im just doing exactly what I want to do with no added conditionals or stressors placed on top of it. Just having fun....
In versiunea de Wordpress 3.5 am descoperit ca mi-a disparut din meniul din stanga al panoului de comanda, clasicul buton de LINKS...
Κάνοντας μια βόλτα στην Άνω Πόλη και στα κάστρα έχει να θαυμάσει κανείς όμορφα τοπία, αξέχαστα ηλιοβασιλέματα και πολλά άλλα. Φυσικά, δεν μπορούν να λείπουν τα πουλιά. Έτσι, σε μια πρόσφατη βόλτα στην περιοχή δεν παρέλειψα να τα φωτογραφίσω ...
Αν δεν καταλάβατε τι είναι μπροστά από τη λευκοσουσουράδα, ορίστε ένα κρανίο γάτας. Δεν ξέρω πως βρέθηκε εκεί (Άλσος Συκεών ...