Results 41 to 50 of about 7,210,127 (300)

Reflections on the Utility of the Retina as a Biomarker for Alzheimer's Disease: A Literature Review. [PDF]

, 2019
As a part of the central nervous system, the retina may reflect both physiologic processes and abnormalities related to diseases of the brain. Indeed, a concerted effort has been put forth to understand how Alzheimer's disease (AD) pathology may manifest
Honma, Patrick, Ngolab, Jennifer, Rissman, Robert A   +2 more
core   +1 more source

Volumetric microvascular imaging of human retina using optical coherence tomography with a novel motion contrast technique [PDF]

, 2009
Phase variance-based motion contrast imaging is demonstrated using a spectral domain optical coherence tomography system for the in vivo human retina. This contrast technique spatially identifies locations of motion within the retina primarily associated
Fingler, Jeff, Fraser, Scott E., Schwartz, Dan, Werner, John S., Zawadzki, Robert J.   +4 more
core   +2 more sources

Combination of snapshot hyperspectral retinal imaging and optical coherence tomography to identify Alzheimer’s disease patients

Alzheimer's Research & Therapy, 2020
The eye offers potential for the diagnosis of Alzheimer’s disease (AD) with retinal imaging techniques being explored to quantify amyloid accumulation and aspects of neurodegeneration.
Sophie Lemmens, Toon Van Craenendonck, Jan Van Eijgen, L. De Groef, R. Bruffaerts, Danilo Andrade de Jesus, W. Charle, M. Jayapala, G. Sunaric‐Mégevand, A. Standaert, J. Theunis, K. Van Keer, M. Vandenbulcke, L. Moons, R. Vandenberghe, P. De Boever, I. Stalmans   +16 more
semanticscholar   +1 more source

Comparison of Adaptive Optics Scanning Light Ophthalmoscopic Fluorescein Angiography and Offset Pinhole Imaging [PDF]

, 2014
Recent advances to the adaptive optics scanning light ophthalmoscope (AOSLO) have enabled finer in vivo assessment of the human retinal microvasculature. AOSLO confocal reflectance imaging has been coupled with oral fluorescein angiography (FA), enabling
Chui, Toco Y.P., Dubow, Michael, Dubra, Alfredo, Gan, Alexander, Pinhas, Alexander, Rosen, Richard B., Shah, Nishit, Sulai, Yusufu N., Weitz, Rishard   +8 more
core   +3 more sources

Adaptive optics two-photon microscopy enables near-diffraction-limited and functional retinal imaging in vivo

Light: Science & Applications, 2020
In vivo fundus imaging offers non-invasive access to neuron structures and biochemical processes in the retina. However, optical aberrations of the eye degrade the imaging resolution and prevent visualization of subcellular retinal structures.
Zhongya Qin, Sicong He, Chao Yang, J. Yung, Congping Chen, C. Leung, Kai Liu, J. Qu   +7 more
semanticscholar   +1 more source

Observation of cone and rod photoreceptors in normal subjects and patients using a new generation adaptive optics scanning laser ophthalmoscope. [PDF]

, 2011
We demonstrate the capability of a new generation adaptive optics scanning laser ophthalmoscope (AOSLO) to resolve cones and rods in normal subjects, and confirm our findings by comparing cone and rod spacing with published histology measurements.
Duncan, Jacque L, Merino, David, Roorda, Austin, Tiruveedhula, Pavan   +3 more
core   +3 more sources

Relationship between Neovascular Density in Swept Source-Optical Coherence Tomography Angiography and Signs of Activity in Exudative Age-Related Macular Degeneration

Journal of Ophthalmology, 2019
Purpose. To assess the relationship between signs of activity in exudative neovascular age-related macular degeneration (nAMD) following anti-vascular endothelial growth factor (anti-VEGF) treatment and morphology of choroidal neovascularization (CNV ...
Martin Stattin, Julia Forster, Ahmed Daniel, Alexandra Graf, Katharina Krepler, Siamak Ansari-Shahrezaei   +5 more
doaj   +1 more source

Deep Retinal Image Understanding [PDF]

, 2016
MICCAI 2016 Camera ...
Maninis, Kevis-Kokitsi, Pont-Tuset, Jordi, Arbeláez, Pablo, Van Gool, Luc   +3 more
openaire   +3 more sources

Advanced Retinal Imaging and Ocular Parameters of the Rhesus Macaque Eye

bioRxiv, 2020
Purpose To determine the normal ocular biometric and perform advanced retinal imaging and functional assessment of a non-human primate used commonly in scientific research, the rhesus macaque. Methods We performed ocular phenotyping on rhesus macaques at
Kira H. Lin, Tu M. Tran, Soohyun Kim, Sangwan Park, J. T. Stout, Rui Chen, J. Rogers, Glenn Yiu, S. Thomasy, A. Moshiri   +9 more
semanticscholar   +1 more source

Smartphone for retinal imaging – Case series in resource-limited rural settings

Indian Journal of Ophthalmology, 2023
Purpose: There is a clinical need for a cost-effective, reliable, easy-to-use, and portable retinal photography. The use of smartphone fundus photography for documentation of retinal changes in resource-limited settings, where retinal imaging was not ...
Vishwanath, Deepak T Swamy, Daneshwari S Gaddi   +2 more
doaj   +1 more source