Results 21 to 30 of about 120,230 (349)

Clinical Studies in Scanning Laser Polarimetry [PDF]

, 2003
Glaucoma is the second leading cause of irreversible blindness worldwide. When left untreated, glaucoma results in visual field loss and eventually in blindness.
Colen, T.P.
core   +7 more sources

Expansion of retinal nerve fiber bundle narrowing in glaucoma: An adaptive optics scanning laser ophthalmoscopy study

American Journal of Ophthalmology Case Reports, 2020
Purpose: To investigate longitudinal changes in the retinal nerve fiber bundle in eyes with primary open angle glaucoma using adaptive optics scanning laser ophthalmoscopy. Methods: A prospective observational case series.
Tomoko Hasegawa, Sotaro Ooto, Tadamichi Akagi, Takanori Kameda, Hideo Nakanishi, Hanako Ohashi Ikeda, Kenji Suda, Akitaka Tsujikawa   +7 more
doaj   +1 more source

Optical coherence tomographic findings in optic nerve hypoplasia

Indian Journal of Ophthalmology, 2013
We investigated a case of unilateral optic nerve hypoplasia using spectral domain optical coherence tomography (SDOCT). Optical coherence tomography was done on both eyes using 5-line Raster scan for the fovea to analyze the retinal nerve fiber layer ...
Daruchi Moon, Tae Kwann Park
doaj   +1 more source

Biomechanical, ultrastructural, and electrophysiological characterization of the non-human primate experimental glaucoma model. [PDF]

, 2017
Laser-induced experimental glaucoma (ExGl) in non-human primates (NHPs) is a common animal model for ocular drug development. While many features of human hypertensive glaucoma are replicated in this model, structural and functional changes in the ...
Christian, Brian J, Eaton, J Seth, Gong, Haiyan, Miller, Paul E, Morgan, Joshua T, Murphy, Christopher J, Nork, T Michael, Raghunathan, VijayKrishna, Rasmussen, Carol A, Russell, Paul, Ver Hoeve, James N, Yang, Chen-Yuan Charlie   +11 more
core   +2 more sources

Early neurovascular changes in the retina in preclinical diabetic retinopathy and its relation with blood glucose

BMC Ophthalmology, 2021
Background To investigate the changes in retinal nerve fiber layer thickness and macular blood flow density during the preclinical stage of diabetic retinopathy and their relationship with blood glucose. Methods In this cross-sectional study, 97 diabetic
Hui Li, Xiaobing Yu, Bodi Zheng, Shan Ding, Zhongqing Mu, Lixin Guo   +5 more
doaj   +1 more source

Multimodal Imaging, OCT En Face, and OCT Angiography of an Anomalous Retinal Artery: Case Report and Review of the Literature

Case Reports in Ophthalmology, 2021
The purpose is to study for the first time the vascular plexuses and the retinal nerve fiber layer and raphe of a patient with a very uncommon anatomical variation: an anomalous retinal artery supplying the whole macula.
Beatriz Vidal-Villegas, Juan Antonio Miralles de Imperial-Ollero, Enrique Santos Bueso, Julián García-Feijoo, Maria Paz Villegas-Pérez   +4 more
doaj   +1 more source

Analysis of current density and related parameters in spinal cord stimulation [PDF]

, 1998
A volume conductor model of the spinal cord and surrounding anatomical structures is used to calculate current (and current density) charge per pulse, and maximum charge density per pulse at the contact surface of the electrode in the dorsal epidural ...
Boom, Herman B.K., Holsheimer, Jan, Wesselink, Wilbert A.   +2 more
core   +3 more sources

A 3D model to evaluate retinal nerve fiber layer thickness deviations caused by the displacement of optical coherence tomography circular scans in cynomolgus monkeys (Macaca fascicularis).

PLoS ONE, 2020
The main objective of the study was to analyze deviations in retinal nerve fiber layer (RNFL) thickness measurements caused by the displacement of circular optic disc optical coherence tomography scans.
Stephanie Niklaus, Pascal W Hasler, Timothy Bryant, Sébastien Desgent, Mark Vezina, Tobias K Schnitzer, Peter M Maloca, Nora Denk   +7 more
doaj   +1 more source

Macular Microcysts in Mitochondrial Optic Neuropathies: Prevalence and Retinal Layer Thickness Measurements. [PDF]

, 2015
PurposeTo investigate the thickness of the retinal layers and to assess the prevalence of macular microcysts (MM) in the inner nuclear layer (INL) of patients with mitochondrial optic neuropathies (MON).MethodsAll patients with molecularly confirmed MON,
Bandello, Francesco, Barboni, Piero, Borrelli, Enrico, Carbonelli, Michele, Carelli, Valerio, Cascavilla, Maria Lucia, Chicani, Filipe, do V F Ramos, Carolina, La Morgia, Chiara, Parisi, Vincenzo, Sadun, Alfredo A, Salomao, Solange R, Savini, Giacomo, Sebag, Jerry   +13 more
core   +3 more sources

Artifact Rates for 2D Retinal Nerve Fiber Layer Thickness Versus 3D Retinal Nerve Fiber Layer Volume

Translational Vision Science & Technology, 2020
To compare artifact rates in two-dimensional (2D) versus three-dimensional (3D) retinal nerve fiber layer (RNFL) scans using Spectralis optical coherence tomography (OCT).Thirteen artifact types in 2D and 3D RNFL scans were identified in 106 glaucomatous eyes and 95 normal eyes. Artifact rates were calculated per B-scan and per eye. In 3D volume scans,
Choi, Stephanie, Jassim, Firas, Tsikata, Edem, Khoueir, Ziad, Poon, Linda Y., Braaf, Boy, Vakoc, Benjamin J., Bouma, Brett E., de Boer, Johannes F., Chen, Teresa C.   +9 more
openaire   +3 more sources