optic nerves


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Related to optic nerves: Cranial nerves, Olfactory nerves

optic nerves

The 2nd of the 12 pairs of CRANIAL NERVES which emerge directly from the brain. The optic nerves are bundles of about one million nerve fibres originating in the RETINAS and connecting these to the brain. Each nerve passes through a channel in the bone at the back of the eye sockets (orbits) to reach the inside of the skull and to join with, and partially cross over, its fellow in the OPTIC CHIASMA.
References in periodicals archive ?
[USA], Aug 24 (ANI): Researchers found new mechanisms that enables the regeneration of nerve fibers, which could open up new treatment approaches for the brain, optic nerve, and spinal cord injuries.
Quite often, we are in such situations in real life when the eyes, like the screens, look perfect in every way and the brain is normal yet the patient cannot see because the cables (optic nerves) are faulty!
Microglia/Macrophage within the Optic Nerve. Since microglia and macrophages are the cells responsible for the myelin clearance, we decided to investigate the number of these cells in the optic nerves.
Ischemic optic neuropathy (ION) refers to infarction of any portion of the optic nerve from the chiasm to optic nerve head.
Spalton, "Bilateral perineuritis of the optic nerves," Journal of Neurology Neurosurgery and Psychiatry, vol.
Quantification of Inflammation in the Optic Nerve. Hematoxylin and Eosin (H&E) staining was used to evaluate inflammation in the optic nerves.
The upper images depict fundus images with red main vessels and the optic nerves (the neuroretinal rim area is marked in yellow and the excavation is marked in white inside the ONH), while the lower images feature horizontal cross-sectional OCT images through the middle of the optic nerves (with a yellow RNFL).
A total number of scans reviewed were of 101 patients constituting 202 optic nerves; 64 males and 37 females were included in the study.
To substantiate this finding, we examined ultrathin sections from injured and uninjured optic nerves and compared their morphological features with those of the damaged nerves derived from the treated group.
The relationship between the sphenoid and the posterior ethmoid sinuses and the optic nerves in Turkish patients.
ONH, an underdevelopment of optic nerves that occurs during fetal development, may appear either as an isolated abnormality or as part of a group of disorders characterized by brain anomalies, developmental delay, and endocrine abnormalities.
The diagnosis of ODD was made on the basis of clinical appearance of the optic nerves, which showed autofluorescence, the advanced visual field defects, and the normal MRI.