Results 41 to 50 of about 499,083 (318)

Fluorescein angiography compared to three-dimensional measurements by the retinal thickness analyzer in classic choroidal neovascularization [PDF]

open access: yes, 2007
Purpose: To compare and correlate imaging of classic subfoveal choroidal neovascularization (CNV) with noninvasive 3-dimensional imaging by the retinal thickness analyzer (RTA) to conventional fluorescein angiography (FA).
Strauss, R. W.   +3 more
core   +1 more source

Comparison of the Fixation Effects of Six Composite Fixatives on Retinal Tissue of Golden Hamsters

open access: yesShiyan dongwu yu bijiao yixue
Objective To compare the effects of six composite fixatives on paraffin sections of golden hamster retinal tissue, and to optimize the fixation methods for retinal tissue paraffin sections of golden hamsters.
WU Haifeng   +4 more
doaj   +1 more source

Retinal Vibrations in Bacteriorhodopsin are Mechanically Harmonic but Electrically Anharmonic: Evidence From Overtone and Combination Bands

open access: yesFrontiers in Molecular Biosciences, 2021
Fundamental vibrations of the chromophore in the membrane protein bacteriorhodopsin (BR), a protonated Schiff base retinal, have been studied for decades, both by resonance Raman and by infrared (IR) difference spectroscopy.
Victor A. Lorenz-Fonfria   +4 more
doaj   +1 more source

Adult limbal neurosphere cells: a potential autologous cell resource for retinal cell generation

open access: yes, 2014
The Corneal limbus is a readily accessible region at the front of the eye, separating the cornea and sclera. Neural colonies (neurospheres) can be generated from adult corneal limbus in vitro.
Jessica Cooke (637632)   +17 more
core   +1 more source

Trainable COSFIRE filters for vessel delineation with application to retinal images [PDF]

open access: yes, 2015
Retinal imaging provides a non-invasive opportunity for the diagnosis of several medical pathologies. The automatic segmentation of the vessel tree is an important pre-processing step which facilitates subsequent automatic processes that contribute to ...
Petkov, Nicolai, Azzopardi, George
core   +1 more source

Severity Grading and Early Retinopathy Lesion Detection through Hybrid Inception-ResNet Architecture

open access: yesSensors, 2021
Diabetic retinopathy (DR) is a diabetes disorder that disturbs human vision. It starts due to the damage in the light-sensitive tissues of blood vessels at the retina.
Sana Yasin   +11 more
doaj   +1 more source

Stabilization of the retinal vascular network by reciprocal feedback between blood vessels and astrocytes

open access: yes, 2005
Development of the retinal vasculature is controlled by a hierarchy of interactions among retinal neurons, astrocytes and blood vessels. Retinal neurons release platelet-derived growth factor (PDGFA) to stimulate proliferation of astrocytes, which in ...
Heloise West   +5 more
core   +1 more source

Comparison of Intravitreal Bevacizumab Upload Followed by a Dexamethasone Implant versus Dexamethasone Implant Monotherapy for Retinal Vein Occlusion with Macular Edema [PDF]

open access: yes, 2012
Purpose: To compare the efficacy and safety of three intravitreal bevacizumab upload injections followed by a dexamethasone implant versus dexamethasone implant monotherapy in eyes with macular edema due to retinal vein occlusion.
Haritoglou, Christos   +7 more
core   +1 more source

Use of ocular biomarkers as a potential tool for early diagnosis of Alzheimer's disease

open access: yesIndian Journal of Ophthalmology, 2020
Alzheimer's disease (AD) is the most common neurodegenerative disease worldwide which unfortunately has no known effective cure to date. Despite many clinical trials indicating the effectiveness of preclinical treatment, a sensitive tool for screening of
Ajay K Singh, Shilpa Verma
doaj   +1 more source

Optical Coherence Tomography Angiography Characteristics of Polypoidal Lesions in Caucasians

open access: yesJournal of Ophthalmology, 2023
Purpose. The aim of the study is to analyze the swept source-optical coherence tomography angiography (SS-OCTA) characteristics of polypoidal lesions in Caucasian patients. Methods.
Daniel Ahmed-Balestra   +8 more
doaj   +1 more source

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