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cornea

cornea

22 4.6
The clear front part of the eye that covers the colored part and helps focus light
  • noun
  • /ˈkɔrnɪə/
  • Specialized
translation icon : córnea
  • And thankfully, modern eye surgeons can sculpt the cornea with far less invasive tools.
  • damaged cornea
  • cornea with opaque scar

The lubrication of the cornea is supported by blinking.

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Examples

  • How do Ortho K lenses stay on the cornea during REM sleep at night?

  • But then afterward they can lay that that flap back down and the cornea kind of self heals.

  • A change in the point of fixation changes the position of the cornea.

    Academic text (2005)
  • The lubrication of the cornea is supported by blinking.

  • The most serious injury was from her contact lenses; they smashed into her corneas.

    Fiction book (1997)
  • There's some damage to his corneas.

  • And there's like a growth inside of my cornea of like cells that's like expanding and it's like starting to mess with my vision.

  • More specifically, light entering the eye passes through the cornea, the aqueous humor, the lens, and the vitreous humor.

    Academic text (2003)
  • Laser surgery involves peeling back a flap of the cornea's surface.

    Academic text (2007)
  • After she scratched her cornea, she had to wear sunglasses to protect her eyes from the light.

Surface Forms

cornea singular
corneas plural

Etymology

Cornea comes from the Latin corneus, meaning 'horn' or 'horn-like'. People used that image because the cornea is a tough, clear layer at the front of the eye, like a small 'horn' that protects the eye and helps focus light.