Results 21 to 30 of about 1,399,800 (288)

Optical Coherence Tomography Can Predict Visual Acuity in Children with Optic Nerve Hypoplasia

open access: yesClinical Ophthalmology, 2022
Athanasia Skriapa-Manta,1,2 Mattias Nilsson,1 Jan Svoboda,3 Monica Olsson,1,2 Maria Nilsson,4 Kristina Teär Fahnehjelm1,2 1Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden; 2Department of Paediatric Ophthalmology, Strabismus ...
Skriapa-Manta A   +5 more
doaj  

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

Lightness constancy: ratio invariance and luminance profile [PDF]

open access: yes, 2009
The term simultaneous lightness constancy describes the capacity of the visual system to perceive equal reflecting surfaces as having the same lightness despite lying in different illumination fields.
Agostini, Tiziano   +2 more
core   +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

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

White-headed Vultures Trigonoceps occipitalis show visual field characteristics of hunting raptors [PDF]

open access: yes, 2017
The visual fields of Aegypiinae vultures have been shown to be adapted primarily to meet two key perceptual challenges of their obligate carrion-feeding behaviour: scanning the ground and preventing the sun’s image falling upon the retina.
Fowler   +17 more
core   +2 more sources

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

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

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