Results 21 to 30 of about 1,103,257 (330)

Electrophysiological Organization of the Eye of Aplysia [PDF]

open access: yes, 1969
The eye of Aplysia californica was studied by electrophysiological and histological methods. It has a central spheroidal lens which is surrounded by a retina composed of several thousand receptor cells which are replete with clear vesicles, pigmented ...
Jacklet, Jon W.
core   +1 more source

Photopic negative response recorded with RETeval system in eyes with optic nerve disorders

open access: yesScientific Reports, 2022
Electroretinography (ERG) is used to evaluate the physiological status of the retina and optic nerve. The purpose of this study was to determine the usefulness of ERGs recorded with the RETeval system in diagnosing optic nerve diseases.
Tsutomu Yamashita   +7 more
doaj   +1 more source

Application of Proteomics Analysis and Animal Models in Optic Nerve Injury Diseases

open access: yesBrain Sciences, 2023
Optic nerve damage is a common cause of blindness. Optic nerve injury is often accompanied by fundus vascular disease, retinal ganglion cell apoptosis, and changes in retinal thickness.
Zhaoyang Meng   +4 more
doaj   +1 more source

Metastatic optic nerve sheath calcification with optic atrophy associated with untreated hyperparathyroidism

open access: yesInterdisciplinary Neurosurgery, 2020
Background: To date, the etiology of optic nerve sheath calcifications is unclear and visual loss secondary to optic nerve sheath calcifications has been reported infrequently.
Patrick K. Jowdy   +2 more
doaj   +1 more source

Hemangioblastoma of the optic nerve [PDF]

open access: yesSurvey of Ophthalmology, 2019
Optic nerve hemangioblastoma is a rare tumor that is usually unilateral and most commonly occurs in the context of von Hippel-Lindau disease. Differential diagnosis is based on clinical history and imaging. Magnetic resonance imaging with gadolinium enhancement is the most useful imaging modality as it can reveal flow voids and an absence of dural ...
Lindsay A. McGrath   +2 more
openaire   +3 more sources

Optical Coherence Tomography Angiography of the Optic Disc; an Overview. [PDF]

open access: yes, 2017
Different diseases of the optic disc may be caused by or lead to abnormal vasculature at the optic nerve head. Optical coherence tomography angiography (OCTA) is a novel technology that provides high resolution mapping of the retinal and optic disc ...
Akil, Handan   +3 more
core   +3 more sources

Reduced Cerebrospinal Fluid Inflow to the Optic Nerve in Glaucoma.

open access: yesInvestigative Ophthalmology and Visual Science, 2018
Purpose To determine whether cerebrospinal fluid (CSF) entry into the optic nerve is altered in glaucoma. Methods Fluorescent 10-kDa dextran tracer was injected into the CSF of 2-month-old (n = 9) and 10-month-old DBA/2J glaucoma mice (n = 8) and age ...
Emily Mathieu   +7 more
semanticscholar   +1 more source

Perioptic Cerebrospinal Fluid Dynamics in Idiopathic Intracranial Hypertension

open access: yesFrontiers in Neurology, 2018
Purpose: To examine the cerebrospinal fluid (CSF) dynamics along the entire optic nerve in patients with idiopathic intracranial hypertension (IIH) and papilledema by computed tomographic (CT) cisternography.Methods: Retrospective analysis of CT ...
Achmed Pircher   +6 more
doaj   +1 more source

The Biomechanics of Indirect Traumatic Optic Neuropathy Using a Computational Head Model With a Biofidelic Orbit

open access: yesFrontiers in Neurology, 2020
Indirect traumatic optic neuropathy (ITON) is an injury to the optic nerve due to head trauma and usually results in partial or complete loss of vision. In order to advance a mechanistic understanding of the injury to the optic nerve, we developed a head
Yang Li   +6 more
doaj   +1 more source

Retinal ganglion cell survival and axon regeneration in WldS transgenic rats after optic nerve crush and lens injury. [PDF]

open access: yes, 2012
BACKGROUND: We have previously shown that the slow Wallerian degeneration mutation, whilst delaying axonal degeneration after optic nerve crush, does not protect retinal ganglion cell (RGC) bodies in adult rats.
Bull, Natalie D   +4 more
core   +3 more sources

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