Question 1

what is a cornea?

Accepted Answer

The cornea is: The transparent layer forming the front of the eye.

Question 2

is the cornea at the back?

Accepted Answer

No at the front: The cornea is the clear front surface of the eye.

Question 3

what exactly is the cornea?

Accepted Answer

See below: It is the clear tissue in the front of the eye that helps focus light (along with the lens inside the eye) onto the retina (the back wall of the inside of the eye) that senses this light (image) and sends a signal to the brain via the optic nerve for the perception of sight.

Question 4

how can the cornea bend light?

Accepted Answer

Refraction: Light is bent when it passes from one medium of a certain density to another of a different density.  In the case of the cornea, it is passing from air, through the clear cornea which acts like a lens, focusing the incoming light signficantly.  It is further bent by the lens inside the eye and hopefully will focus perfectly on the retina at the back of the eye for best vision.

Question 5

what happens if i move my cornea?

Accepted Answer

Cornes: Nothing. The cornea is firmly attached 360 degrees and takes a lot of punishment everyday.

Question 6

i scratched my cornea. what do i do?

Accepted Answer

Saline & Patch: You can use Normal Saline eye drops (not visine) and cover the eye to llimit the use.  If it is still painful in the morning, see your doctor.

Question 7

how to get help for a cornea scratch?

Accepted Answer

Depends: This depends on the cause of the scratch. If it is still bothersome after a day or so then you should see your eye doctor. They will likely place you on drops to prevent infection , minimize dryness and and speed healing, these should heal reltively rapidly.

Question 8

for how long does a ripped cornea heal?

Accepted Answer

2-7 days: Depending on the severity of the injury this will usually take between one day and one week. If the injury is severe it can take longer.

Question 9

please tell me, could a cornea grow back?

Accepted Answer

No: Maybe you are referring to the superficial layer of the cornea? The cornea epithelium does regenerate rapidly if abraded or injured. The entire corneal structure does not.

Question 10

what can happen if you scratch your cornea?

Accepted Answer

Pain, vision loss: The cornea is quite painful when scratched and gets very light sensitive.  Most will self correct in a relatively short time but you should seek ophthalmological attention to avoid extension, infection and recurrence.

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What is a cornea?

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Is the cornea at the back?

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What exactly is the cornea?

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How can the cornea bend light?

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What happens if i move my cornea?

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I scratched my cornea. what do i do?

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How to get help for a cornea scratch?

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For how long does a ripped cornea heal?

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Please tell me, could a cornea grow back?

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What can happen if you scratch your cornea?

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