Cornea
noun
The clear front surface of the eye that lets in light to help with vision.
He has a scratch on his cornea from the accident.
Often appears as...
- cornea transplant
- cornea surgery
Usage tips
Technical
noun
The clear front surface of the eye that lets in light to help with vision.
He has a scratch on his cornea from the accident.
Often appears as...
- cornea transplant
- cornea surgery
Usage tips
Technical
Definition 1 of 1
Pro Tip 1/3Vision Component
The cornea is essential for vision, acting like a camera lens for your eye.
A healthy cornea is crucial for good eyesight.
Pro Tip 2/3Sensitivity
The cornea is sensitive; it can easily be scratched or damaged.
Wearing safety goggles protects your cornea from injuries.
Pro Tip 3/3Medical Context
Cornea issues usually require medical attention, such as surgery or transplants.
The optometrist decided her vision problems were due to cornea damage.
Pro Tip 1/3Vision Component
The cornea is essential for vision, acting like a camera lens for your eye.
A healthy cornea is crucial for good eyesight.
Pro Tip 2/3Sensitivity
The cornea is sensitive; it can easily be scratched or damaged.
Wearing safety goggles protects your cornea from injuries.
Pro Tip 3/3Medical Context
Cornea issues usually require medical attention, such as surgery or transplants.
The optometrist decided her vision problems were due to cornea damage.
Pro Tip 1/3Vision Component
The cornea is essential for vision, acting like a camera lens for your eye.
A healthy cornea is crucial for good eyesight.
Pro Tip 2/3Sensitivity
The cornea is sensitive; it can easily be scratched or damaged.
Wearing safety goggles protects your cornea from injuries.
Pro Tip 3/3Medical Context
Cornea issues usually require medical attention, such as surgery or transplants.
The optometrist decided her vision problems were due to cornea damage.
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Video examples
Can light stop the...
goes for the eye on the very surface of our eye that's that's some liquid called the tear layer and 5ec light can't penetrate that either so it can't reach the the living cells in the iron in the cornea or deeper down in the lens for example so that's there's a really good
Video examples
The function and fashion...
When light rays reflect off an object and enter the eye through the cornea, your retina converts this light into electrical impulses that are sent to the brain, which interprets the impulses and allows you to understand what you're seeing. Eyeglasses help you see.
Video examples
Why do we cry? The three...
Right next to Iris is the mucus layer, which keeps the whole thing fastened to her. On top of it is the aqueous layer, which keeps Iris hydrated, repels invasive bacteria, and protects her skin, or cornea, from damage. And, finally, there is the lipid layer,
Video examples
How does laser eye...
was fed up with glasses. He wanted a solution for blurry vision that fixed the eye itself, without relying on external aids. But the surgery he eventually devised was not for the faint of heart. Barraquer began by slicing off the front of a patient’s cornea
Video examples
The effects of...
a condition called exophthalmia. Sometimes rockfish eyes will even have a crystallized appearance from corneal emphysemas, little gas bubbles that build up inside the cornea. Thankfully, a scuba diver doesn't have a closed swim bladder to worry about.
Video examples
Watch: How Animals and...
most advanced eyes perform complex visual tasks lenses corneas and irises focus light on photoreceptors creating sharp clear vision this entire evolution from simple to complex could theoretically happen in less than half a million years
Video examples
How do glasses help us...
But many people develop refractive errors, either during childhood as their eyes are growing, or in later life as their eyes age. Imperfections in the cornea and lens cause refracted light to be focused in front of or behind the retina,
Video examples
A curable condition that...
couching is still performed in some parts of the world. Later procedures would also focus on removing the cloudy lens, for example, by making an opening in the cornea to pull out the lens along with the membrane capsule surrounding it.
Video examples
How my son's short life...
His corneas would go to Schepens Eye Research Institute, which is part of Harvard Medical School, and his retinas would go to the University of Pennsylvania. A few days later, we had a funeral with our immediate family,
Video examples
What if we eliminated...
I'd like you to imagine, just for a moment, that your eyelashes grew inwards instead of outwards, so that every time you blinked, they would scrape the front of your eyeballs, damaging the corneas,
Video examples
Can light stop the...
goes for the eye on the very surface of our eye that's that's some liquid called the tear layer and 5ec light can't penetrate that either so it can't reach the the living cells in the iron in the cornea or deeper down in the lens for example so that's there's a really good
Video examples
The function and fashion...
When light rays reflect off an object and enter the eye through the cornea, your retina converts this light into electrical impulses that are sent to the brain, which interprets the impulses and allows you to understand what you're seeing. Eyeglasses help you see.
Video examples
Why do we cry? The three...
Right next to Iris is the mucus layer, which keeps the whole thing fastened to her. On top of it is the aqueous layer, which keeps Iris hydrated, repels invasive bacteria, and protects her skin, or cornea, from damage. And, finally, there is the lipid layer,
Video examples
How does laser eye...
was fed up with glasses. He wanted a solution for blurry vision that fixed the eye itself, without relying on external aids. But the surgery he eventually devised was not for the faint of heart. Barraquer began by slicing off the front of a patient’s cornea
Video examples
The effects of...
a condition called exophthalmia. Sometimes rockfish eyes will even have a crystallized appearance from corneal emphysemas, little gas bubbles that build up inside the cornea. Thankfully, a scuba diver doesn't have a closed swim bladder to worry about.
Video examples
Watch: How Animals and...
most advanced eyes perform complex visual tasks lenses corneas and irises focus light on photoreceptors creating sharp clear vision this entire evolution from simple to complex could theoretically happen in less than half a million years
Video examples
How do glasses help us...
But many people develop refractive errors, either during childhood as their eyes are growing, or in later life as their eyes age. Imperfections in the cornea and lens cause refracted light to be focused in front of or behind the retina,
Video examples
A curable condition that...
couching is still performed in some parts of the world. Later procedures would also focus on removing the cloudy lens, for example, by making an opening in the cornea to pull out the lens along with the membrane capsule surrounding it.
Video examples
How my son's short life...
His corneas would go to Schepens Eye Research Institute, which is part of Harvard Medical School, and his retinas would go to the University of Pennsylvania. A few days later, we had a funeral with our immediate family,
Video examples
What if we eliminated...
I'd like you to imagine, just for a moment, that your eyelashes grew inwards instead of outwards, so that every time you blinked, they would scrape the front of your eyeballs, damaging the corneas,
Example 1 of 10
Quote examples
Donna Strickland
Canadian Physicist
What the ultrafast laser does is that because it doesn't have to just cut from the surface, it's only at the intense focal point that it does this damage where the electrons come off the atoms, you could actually put your laser and scan it over your cornea and it would cut underneath that.
Quote examples
Shannon Bream
American Journalist
Basically, I suffer from a genetic condition that causes my corneas to tear all the time. If it's happened to you even once, you know how agonizing it can be - for me, it was happening on a daily basis.
Quote examples
Katie Piper
English Writer
I have been the beneficiary of donations in the form of human tissue and of a cornea which gave me sight when otherwise I would have none.
Quote examples
Sue Perkins
English Comedian
I had an operation on my cornea when I was little, and remember being deeply enamoured with the team who looked after me.
Quote examples
Shannon Bream
American Journalist
I've been very open about this cornea disease that I have.
Quote examples
Donna Strickland
Canadian Physicist
What the ultrafast laser does is that because it doesn't have to just cut from the surface, it's only at the intense focal point that it does this damage where the electrons come off the atoms, you could actually put your laser and scan it over your cornea and it would cut underneath that.
Quote examples
Shannon Bream
American Journalist
Basically, I suffer from a genetic condition that causes my corneas to tear all the time. If it's happened to you even once, you know how agonizing it can be - for me, it was happening on a daily basis.
Quote examples
Katie Piper
English Writer
I have been the beneficiary of donations in the form of human tissue and of a cornea which gave me sight when otherwise I would have none.
Quote examples
Sue Perkins
English Comedian
I had an operation on my cornea when I was little, and remember being deeply enamoured with the team who looked after me.
Quote examples
Shannon Bream
American Journalist
I've been very open about this cornea disease that I have.
Example 1 of 5
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