Results 1 to 10 of about 18,534 (153)

Quantifying nerve decussation abnormalities in the optic chiasm [PDF]

open access: yesNeuroImage: Clinical, 2019
Objective: The human optic chiasm comprises partially crossing optic nerve fibers. Here we used diffusion MRI (dMRI) for the in-vivo identification of the abnormally high proportion of crossing fibers found in the optic chiasm of people with albinism ...
Khazar Ahmadi   +2 more
exaly   +4 more sources

Ultrasound assessment of the fetal optic chiasm [PDF]

open access: yesJournal of Medical Ultrasound, 2023
This article reviews the literature on different methods of prenatal ultrasound visualization of the optic chiasm (OC) and its applications. Prenatal imaging of the OC is feasible from 19 to 37 weeks of gestation.
Jo-Ting Wang, Tung-Yao Chang
doaj   +4 more sources

The Organization of the Second Optic Chiasm of the Drosophila Optic Lobe [PDF]

open access: yesFrontiers in Neural Circuits, 2019
Visual pathways from the compound eye of an insect relay to four neuropils, successively the lamina, medulla, lobula, and lobula plate in the underlying optic lobe.
Stephen M Plaza   +2 more
exaly   +4 more sources

Glioblastoma in the optic chiasm: A case report [PDF]

open access: yesRadiology Case Reports, 2022
Malignant optic gliomas are an uncommon pathology, with around 67 cases reported worldwide in the literature. We present the case of a 77-year-old-male with a two-month history of progressive vision loss, ultimately leading to bilateral blindness.
Lina F. Merchancano-Esquivel   +3 more
doaj   +4 more sources

A case of optic chiasm stroke, a condition rarely described in the literature [PDF]

open access: yesEuropean Journal of Case Reports in Internal Medicine, 2023
Acute bilateral blindness is an emergent condition that may signal life-threatening disease. The approach focuses on identification of life-threatening disease processes, while differentiating between ocular, psychogenic and neurologic aetiologies.
Rita Fideles   +5 more
doaj   +2 more sources

Optic chiasm: Visualizing the visual pathway [PDF]

open access: yesIndian Journal of Ophthalmology, 2020
Apinderpreet Singh   +3 more
doaj   +4 more sources

Isaac Newton's description of the optic chiasm [PDF]

open access: yesArquivos de Neuro-Psiquiatria
Sir Isaac Newton is widely regarded as one of the greatest scientific minds in history, with seminal contributions across mathematics, physics—particularly optics—and the formulation of the law of universal gravitation.
Caio C. D. Disserol   +3 more
doaj   +2 more sources

Optic Nerve Glioblastoma with Optic Chiasm Involvement: A Case Report and a Brief Literature Review [PDF]

open access: yesMedicina
Background: optic nerve glioblastoma is an uncommon pathology. The optic chiasm, optic tract, or optic nerves are possible places from which the tumor can originate. Most of the neuroimaging findings are nonspecific. To confirm the diagnosis, a biopsy is
Artis Brokāns   +7 more
doaj   +2 more sources

Enhanced intraoperative visualization of the optic chiasm using contrast-enhanced balanced steady-state free precession imaging during endoscopic transsphenoidal surgery [PDF]

open access: yesScientific Reports
Preoperative balanced steady-state free precession (bSSFP) imaging is helpful in endoscopic transsphenoidal surgery (ETSS) for accurately evaluating the optic chiasm and surrounding structures.
Yosuke Fujimoto   +8 more
doaj   +2 more sources

Breed-Specific Skull Morphology Reveals Insights into Canine Optic Chiasm Positioning and Orbital Structure through 3D CT Scan Analysis [PDF]

open access: yesAnimals
This study’s CT scan-based morphometric analysis of 50 adult dogs explored the relationship between skull shape variations (determined by the skull index, SI), optic chiasm, optic canals, and orbital shape. Dogs were classified as brachycephalic (SI ≥ 59)
Yoichiro Ichikawa   +2 more
doaj   +2 more sources

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