There's no tint of pain, real pain, in the sensations of the optic nerve
. If you wound the optic nerve
, you merely see flashes of light,-- just as disease of the auditory nerve merely means a humming in our ears.
In the Articulata we can commence a series with an optic nerve
merely coated with pigment, and without any other mechanism; and from this low stage, numerous gradations of structure, branching off in two fundamentally different lines, can be shown to exist, until we reach a moderately high stage of perfection.
Just as a photographic plate receives a different impression of a cluster of stars when a telescope is part of the intervening medium, so a brain receives a different impression when an eye and an optic nerve
are part of the intervening medium.
In the common mole the eye is extraordinarily small but perfect, though many anatomists doubt whether it is connected with the true optic nerve
; its vision must certainly be imperfect, though probably useful to the animal when it leaves its burrow.
The light from it had beat upon his sealed lids, and the eyes and the optic nerves
had pulsated to little, sparklike flashes, warm-coloured and strangely pleasing.
And it seemed to me that his eyes were strange, not only the expression, but the physical seeming, as though the optic nerves
and supporting muscles had suffered strain and slightly twisted the eyeballs.
[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.
They do this by stimulating the optic nerve
with a new type of intraneural electrode called OpticSELINE.
ENPNewswire-August 20, 2019--EPFL: Optic nerve
stimulation to aid the blind
Fact.MR has announced the addition of the "Optic Nerve
Disorders Drugs Market Forecast, Trend Analysis & Competition Tracking - Global Market Insights 2018 to 2026"report to their offering.
Summary: Optic nerve
disorder, commonly known as optic neuropathy, is a medical condition indicating degeneration of the optic nerve
It discusses comparison to fluorescein angiography, terminology, and interpretation of inner and outer retinal disorders, including diseases of the optic nerve
head, along with case studies of inner retinal pathology, outer retinal disease, diseases of the choroid, and optic nerve