Results 21 to 30 of about 163,932 (313)

The Optic Nerve [PDF]

open access: yesAmerican Journal of Ophthalmology, 1973
The editor did an outstanding job in compiling this symposium. There were 43 papers presented in this volume, all excellent. I will comment briefly on six. Few people have a central artery of the optic nerve, and such individuals do not naturally have an axial blood supply.
Tavistock Square, Wc H, London
  +6 more sources

Orbital Magnetic Resonance Imaging May Contribute to the Diagnosis of Optic Nerve Lymphoma

open access: yesFrontiers in Neurology, 2020
Background: Optic nerve lymphoma can present a diagnostic challenge because of its confusing clinical features and the difficulty of obtaining lesion tissue for biopsy.
Mo Yang   +6 more
doaj   +1 more source

Optic nerve sheath diameter measurement using point-of-care ultrasound to assess intracranial pressure of adult patients with traumatic brain injury in resource-limited setting

open access: yesInterdisciplinary Neurosurgery, 2023
Background: Traumatic brain injury is a disease with high mortality with increased intracranial pressure included in the emergency department. Neuroimaging and intracranial pressure monitoring are limited in resource-limited settings.
Melaku Getachew   +13 more
doaj   +1 more source

Retrobulbar diameter of optic nerve in glaucoma [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2009
Introduction. The ultrasound diagnostics of the optic nerve includes the analysis of the optic nerve disc (PNO) and measuring of its retrobulbar diameter.
Stefanović Ivan   +2 more
doaj   +1 more source

Ischemic optic neuropathies: Current concepts

open access: yesAnnals of Indian Academy of Neurology, 2022
Ischemic optic neuropathy (ION) is the term ascribed to optic nerve disease that is the result of a transient or permanent interruption of the blood supply to any portion of the optic nerve. Anterior ischemic optic neuropathy (AION) refers to ischemia of
Ajay D Patil   +2 more
doaj   +1 more source

Assessment of Optic Nerve Changes in Patients Receiving Anti-Tuberculosis Drugs at Different Time Interval

open access: yesJournal of Bahria University Medical and Dental College, 2022
Objectives: To assess optic nerve changes in patients receiving anti-tuberculosis drugs and to assess optic nerve changes at different time interval of therapy.
Shakila Abbas   +5 more
doaj   +1 more source

The impact of optic nerve movement on optic nerve magnetic resonance diffusion parameters

open access: yesSouth African Journal of Radiology, 2014
Background: Optic nerve diffusion imaging is a useful investigational tool of optic nerve microstructure, but is limited by eye-movement-induced optic nerve movement and artifacts from surrounding cerebrospinal fluid, fat, bone and air.
Anand Moodley   +6 more
doaj   +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

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