Results 51 to 60 of about 54,346 (276)

Simultaneous high-resolution retinal imaging and high-penetration choroidal imaging by one-micrometer adaptive optics optical coherence tomography [PDF]

open access: yes, 2010
Adaptive optics optical coherence tomography (AO-OCT) provides three-dimensional high-isotropic-resolution retinal images in vivo. We developed AO-OCT with a 1.03-μm probing beam and demonstrated high-penetration, high-resolution retinal imaging.
Cense Barry   +7 more
core   +1 more source

Age and diabetes related changes of the retinal capillaries: an ultrastructural and immunohistochemical study [PDF]

open access: yes, 2015
Normal human aging and diabetes are associated with a gradual decrease of cerebral flow in the brain with changes in vascular architecture. Thickening of the capillary basement membrane and microvascular fibrosis are evident in the central nervous system
ARTICO, Marco   +10 more
core   +1 more source

Monitoring retinal changes with optical coherence tomography predicts neuronal loss in experimental autoimmune encephalomyelitis. [PDF]

open access: yes, 2019
BACKGROUND:Retinal optical coherence tomography (OCT) is a clinical and research tool in multiple sclerosis, where it has shown significant retinal nerve fiber (RNFL) and ganglion cell (RGC) layer thinning, while postmortem studies have reported RGC loss.
Aktas, Orhan   +18 more
core   +1 more source

Comparison of optical coherence tomography measurements between high hyperopic and low hyperopic children

open access: yesTherapeutic Advances in Ophthalmology, 2020
Purpose: To identify the peripapillary retinal nerve fiber layer, total macular, ganglion cell layer, and inner plexiform layer thicknesses in children with high hyperopia using spectral domain optical coherence tomography.
Funda Dikkaya, Sevil Karaman Erdur
doaj   +1 more source

Clinical Studies in Scanning Laser Polarimetry [PDF]

open access: yes, 2003
Glaucoma is the second leading cause of irreversible blindness worldwide. When left untreated, glaucoma results in visual field loss and eventually in blindness.
Colen, T.P.
core   +2 more sources

Why do axons differ in caliber? [PDF]

open access: yes, 2012
CNS axons differ in diameter (d) by nearly 100-fold (∼0.1-10 μm); therefore, they differ in cross-sectional area (d(2)) and volume by nearly 10,000-fold.
Balasubramanian, Vijay   +4 more
core   +2 more sources

MOGAD Is the Most Common Cause of Isolated Optic Neuritis in Children

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives The study aimed to characterize the clinical features, etiologies, and outcomes of isolated, first‐time pediatric ON in the post‐MOG‐IgG era. Methods This was a single‐center retrospective cohort study at Texas Children's Hospital of patients diagnosed with first‐time ON between 2018–2024, with follow‐up data collected through 2025.
Chaitanya Aduru   +13 more
wiley   +1 more source

Retinal Nerve Fiber layer (RNFL) Thickness Measurement with Optical Coherence Tomography (OCT) in Normal Children

open access: yesAdvanced Medical Journal
Background and Objectives: To assess retinal nerve fiber layer thickness in normal children using spectral-domain optical coherence tomography. Methods: This cross-sectional study of 120 healthy participants collected data over six months (September ...
Raz Ahmed Mustafa   +2 more
doaj   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz   +3 more
wiley   +1 more source

Association between retinal nerve fiber layer thickness and psychiatric disorders: a mendelian randomization study

open access: yesBMC Psychiatry
Background Retinal nerve fiber layer thickness, as a new visual indicator that may help diagnose mental disorders, is gaining attention from researchers. However, the causal relationship between retinal nerve fiber layer thickness and mental disorders is
Qin Fuyi   +8 more
doaj   +1 more source

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