Results 21 to 30 of about 352,043 (365)

Cortical control of smooth pursuit eye movements [PDF]

open access: yes, 2007
In this PhD project, the functions of cortical regions that control smooth pursuit eye movements (SPEM) and visual attention were investigated. Combining behavioural (eye movement) measurements and functional magnetic resonance imaging (fMRI) the ...
Ohlendorf, Sabine
core   +1 more source

Macular integrity assessment to determine the association between macular microstructure and functional parameters in diabetic macular edema [PDF]

open access: yesInternational Journal of Ophthalmology, 2018
AIM: To respectively evaluate macular morphological features and functional parameters by using spectral-domain optical coherence tomography (SD-OCT) and macular integrity assessment (MAIA) in patients with diabetic macular edema (DME).
Jian-Wei Wang   +7 more
doaj   +1 more source

Vision through Healthy Aging Eyes

open access: yesVision, 2021
As life expectancy grows, so too will the number of people adversely affected by age. Although it is acknowledged that many conditions and diseases are associated with age, this mini-review will present a current update of the various visual changes that
Nir Erdinest   +4 more
doaj   +1 more source

An algorithm for visual fields

open access: yesSurvey of Ophthalmology, 1980
The authors present an algorithm, or sequential strategy, for the performance and interpretation of visual fields. Based on the principle that particular areas of the visual field are relatively vulnerable and that particular defect configurations are relatively more diagnostic, the strategy proposes certain "core maneuvers" for all initial ...
Department of Ophthalmology, College of Medicine, University of Florida, Gainesville, Florida USA ( host institution )   +2 more
openaire   +3 more sources

Eye position modulates retinotopic responses in early visual areas: a bias for the straight-ahead direction [PDF]

open access: yes, 2015
Even though the eyes constantly change position, the location of a stimulus can be accurately represented by a population of neurons with retinotopic receptive fields modulated by eye position gain fields.
CORBETTA, MAURIZIO   +12 more
core   +1 more source

Injuries to the Immature Optic Radiation Show Correlated Thinning of the Macular Ganglion Cell Layer

open access: yesFrontiers in Neurology, 2018
Injuries to the immature optic radiation (OR) are associated with thinning of the retinal nerve fiber layer and corresponding visual field (VF) defects.
Finn Lennartsson   +6 more
doaj   +1 more source

Modeling Reactive Oxygen Species-Induced Axonal Loss in Leber Hereditary Optic Neuropathy

open access: yesBiomolecules, 2022
Leber hereditary optic neuropathy (LHON) is a rare syndrome that results in vision loss. A necessary but not sufficient condition for its onset is the existence of known mitochondrial DNA mutations that affect complex I biomolecular structure.
Darius W. Lambiri, Leonard A. Levin
doaj   +1 more source

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

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

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

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