Results 51 to 60 of about 17,274 (270)
Retinal Prostheses and Artificial Vision
In outer retinal degenerative diseases such as retinitis pigmentosa, choroideremia, and geographic atrophy, 30% of the ganglion cell layer in the macula remains intact.
Emin Özmert, Umut Arslan
doaj +1 more source
Circadian rhythm dysfunction in glaucoma: A hypothesis
The absence of circadian zeitgebers in the social environment causes circadian misalignment, which is often associated with sleep disturbances. Circadian misalignment, defined as a mismatch between the sleep-wake cycle and the timing of the circadian ...
Jean-Louis Girardin+3 more
doaj +1 more source
Gibbs distribution analysis of temporal correlations structure in retina ganglion cells [PDF]
We present a method to estimate Gibbs distributions with \textit{spatio-temporal} constraints on spike trains statistics. We apply this method to spike trains recorded from ganglion cells of the salamander retina, in response to natural movies. Our analysis, restricted to a few neurons, performs more accurately than pairwise synchronization models ...
arxiv +1 more source
Facial Nerve Paresis in Ramsay Hunt Syndrome
Introduction: Ramsay Hunt syndrome (SRH) is known as otic herpes zoster or geniculate ganglion herpes zoster, which is a late complication of Varicella-Zoster Virus (VZV) infection, which causes inflammation of the geniculate ganglion of cranial nerve ...
iltania mince
doaj +1 more source
Brainstem and Cerebellar Involvement in Ramsay Hunt Syndrome
We present a case of a 62-year-old Caucasian male with laryngeal cancer and Ramsay Hunt Syndrome otherwise known as herpes zoster oticus due to reactivation of the varicella zoster virus. Classic findings include the triad of ipsilateral facial paralysis,
Vijay Letchuman, Charles D. Donohoe
doaj +1 more source
Bell’s palsy’s viral pathogenicity and the use of botulinum toxin type A as treatment
Bell’s palsy is the common name for the inflammation of the cranial nerve VII. The peculiar geniculate ganglion inflammation is idiopathic and causes hemifacial paralysis.
Abraham Melara, Sathees Chandra
doaj +1 more source
Amygdala Neurodegeneration: A Key Driver of Visual Dysfunction in Parkinson's Disease. [PDF]
ABSTRACT Objective Visual disability in Parkinson's disease (PD) is not fully explained by retinal neurodegeneration. We aimed to delineate the brain substrate of visual dysfunction in PD and its association with retinal thickness. Methods Forty‐two PD patients and 29 controls underwent 3‐Tesla MRI, retinal spectral‐domain optical coherence tomography,
Erramuzpe A+15 more
europepmc +2 more sources
Can retinal ganglion cell dipoles seed iso-orientation domains in the visual cortex? [PDF]
It has been argued that the emergence of roughly periodic orientation preference maps (OPMs) in the primary visual cortex (V1) of carnivores and primates can be explained by a so-called statistical connectivity model.
Eglen, Stephen J.+3 more
core +4 more sources
Nanotherapy for Neural Retinal Regeneration
Nanotechnology enhances ophthalmic treatments by improving drug delivery and regenerating ocular tissues, combating vision loss from retinal diseases through innovative nano‐systems. This review outlines ocular anatomy, pathology, immune microenvironment, and barriers, detailing nanocarrier characteristics, classification, and preparation methods, and ...
Chuyao Yu+11 more
wiley +1 more source