Results 21 to 30 of about 1,386,503 (343)

Retinal Nerve Fiber Layer Thickness Measured by Optical Coherence Tomography in Non-glaucomatous Taiwanese

open access: yesJournal of the Formosan Medical Association, 2008
Background/Purpose: Assessment of the peripapillary retinal nerve fiber layer (RNFL) is essential for neuroretinal diseases, especially for early prediction of glaucomatous damage. The purpose of this study wasto measure RNFL thickness by Stratus optical
Pai-Huei Peng, Huey-Shyan Lin
doaj   +1 more source

Gaze-contingent flicker pupil perimetry detects scotomas in patients with cerebral visual impairments or glaucoma [PDF]

open access: yes, 2018
The pupillary light reflex is weaker for stimuli presented inside as compared to outside absolute scotomas. Pupillograph perimetry could thus be an objective measure of impaired visual processing.
Bergsma, Douwe P   +6 more
core   +3 more sources

Does Corticothalamic Feedback Control Cortical Velocity Tuning? [PDF]

open access: yes, 2001
The thalamus is the major gate to the cortex and its contribution to cortical receptive field properties is well established. Cortical feedback to the thalamus is, in turn, the anatomically dominant input to relay cells, yet its influence on thalamic ...
Hillenbrand, Ulrich, van Hemmen, J. Leo
core   +5 more sources

Visual Dysfunction in Posterior Cortical Atrophy

open access: yesFrontiers in Neurology, 2017
Posterior cortical atrophy (PCA) is a syndromic diagnosis. It is characterized by progressive impairment of higher (cortical) visual function with imaging evidence of degeneration affecting the occipital, parietal, and posterior temporal lobes ...
Mari N. Maia da Silva   +7 more
doaj   +1 more source

The Computational Magic of the Ventral Stream: Towards a Theory [PDF]

open access: yes, 2011
I conjecture that the sample complexity of object recognition is mostly due to geometric image transformations and that a main goal of the ventral stream – V1, V2, V4 and IT – is to learn-and-discount image transformations.
Tomaso A. Poggio
core   +2 more sources

CHANGES IN THE TREATMENT PLANS OF GLAUCOMA PATIENTS IN A REAL-WORLD SITUATION

open access: yesKhyber Medical University Journal, 2022
OBJECTIVE: To determine the changes in glaucoma prescriptions during a single visit in real-world situation at Al-Shifa Trust Eye Hospital, Rawalpindi, Pakistan.
Muhammad Sadiq   +4 more
doaj   +1 more source

Role of Ganglionic Cell Complex, Retinal Nerve Fibre Layer in Glaucoma Evaluation [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2020
Introduction: Glaucoma is a multifactorial disease characterised by damage to Retinal Ganglion Cells (RGCs) that inturn results in damage of nerve fibers resulting in functional visual impairment.
ATUL KUMAR SINGH   +3 more
doaj   +1 more source

Multi-field visualization [PDF]

open access: yes, 2011
Modern science utilizes advanced measurement and simulation techniques to analyze phenomena from fields such as medicine, physics, or mechanics. The data produced by application of these techniques takes the form of multi-dimensional functions or fields, which have to be processed in order to provide meaningful parts of the data to domain experts ...
openaire   +2 more sources

Creating new stories for praxis: navigations, narrations, neonarratives [PDF]

open access: yes, 2007
This paper considers differing understandings about the role and praxis of studio-based research in the visual arts. This is my attempt to unpack this nexus and place it in a context of credibility for our field.
Stewart, Robyn
core   +1 more source

Fundamental Properties of Intensity, Form, and Motion Perception in the Visual Nervous Systems of Calliphora phaenicia and Musca domestica [PDF]

open access: yes, 1969
Several classes of interneurons in the optic lobes and brain of the insects, Musca domestica and Calliphora phaenicia, have been studied in detail.
Dill, J. C., McCann, G. D.
core   +1 more source

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