Optic Nerve facts
While investigating facts about Optic Nerve Hypoplasia and Optic Nerve Damage, I found out little known, but curios details like:
Some people have "blindsight." They are blind due to damage in the brain's visual cortex, but the eye and optic nerve are fine. They can't consciously see anything but can guess their way through an obstacle course or guess the emotional content of a photo through intuition with decent accuracy.
how optic nerve damage?
Owls have a reputation of being wise due to their large eyes, but are not smart enough to be trained - unlike parrots, hawks, and pigeons. They still have a complex brain, but it spends much of its time processing information from its optic nerves.
What's optic nerve gliomas?
In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what's optic nerve head. Here are 18 of the best facts about Optic Nerve Drusen and Optic Nerve Swelling I managed to collect.
what's optic nerve disease?
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Wearing sunglasses makes you more susceptible to becoming sunburned. Sunlight stimulates the optic nerve and warns the pituitary glad. This results in the release melanocyte stimulating protein in an attempt to prevent burns
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Dionne Quan, The voice actress of Trixie Tang from Fairly Odd Parents and Kimi Finster from Rugrats was born with optic nerve hypoplasia and is legally blind. She reads her scripts in braille.
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The optic nerve in the back of the eye is an EXTENSION of the brain and it's visible using an ophthalmoscope, making it the ONLY part of the brain viewed from outside the body.
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The reason that eyes are most affected by albinism is because the optic nerve and retina development are impacted by melanin, which is lacking in those with the genetic condition.
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Issues with eye function in those affected by albinism can include nystagmus (rapid uncontrollable back and forth eye movement), strabismus (eyes fail to function in unison), amblyopia (lazy eye), being extremely near or far-sighted, photophobia, having underdeveloped optic nerves, misrouting of optic nerve signaling, and astigmatism (blurred vision).
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The reason why human eyes have a blind spot is because of the hole near the back of the eye where the arteries, veins, and optic nerve enter the eye has no photo receptors.
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While there Malpighi continued his microscopic studies of anatomy and identified taste buds, the structure of the brain, and the optic nerve.
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Tommy Edison! A very funny man, born blind due to under developed optic nerves, he answers all the questions sighted people are afraid to ask!
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Due to how the optic nerve connects to the retina, all humans have blindspots that can be easily experienced.
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Due to how our retina and optic nerve process data at each level of our visual system information is lost. Resulting in "estimates of the bandwidth of conscious awareness itself (i.e. what we ‘see’) being in the range of 100 bits/sec or less."
Why optic nerve swollen?
You can easily fact check why optic nerve cannot regenerate by examining the linked well-known sources.
Scallops have up to 100 eyes set in separate sockets, each with a lens, a retina and an optic nerve like the human eye.
The optic nerve (cranial nerve 2) is technically brain tissue. This makes eye doctors one of the only health professionals to be able to view your brain without surgery or imaging. - source
Each eye has a blind spot near the centre of vision where the optic nerve is attached. Your brain is so good at "filling in" the missing area that you've never noticed. - source
we all have "blind spots" in our vision, where the optic nerve meets with the retina, and we can find this blind spot.
Dionne Quan was born was born with optic nerve hypoplasia and is legally blind. She was the voice actor of Kimi Finster (Rugrats) and Trixie Tang (Fairly Odd Parents), and her scripts provided were printed in Braille. - source
What happens when optic nerve is damaged?
A company doing brain implants that connect to a pair of glasses with cameras on it. So if you’re blind or near-blind, you can see images that are wirelessly sent into your optic nerve.
