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cornea Definition

cor·nea (kôrnē ə)

noun

the transparent tissue over the front of the eyeball, covering the iris and pupil

Etymology: ME < ML < L cornea (tela), horny (web, tissue), fem. sing. of corneus < cornu, horn

Related Forms:

cornea Usage Examples

Converse of object

  • donate: She said: " Unfortunately for patients awaiting a new cornea there is no alternative to a donated human cornea.
  • call: A curved window called the cornea first focuses the light.
  • cause: The fluid buildup causes the cornea to look white.
  • have: Normal patients have a cornea that is usually 550-600 microns thick.
  • curve: A large pupil and highly curved cornea admit plenty of light to keep the image on the retina bright.
  • damage: Transplantation of preserved human amniotic membrane for surface reconstruction in severely damaged rabbit corneas.

Preposition: at

  • front: The eye consists of multiple structures from the cornea at the front to the retina at the back.

Converse of subject

  • focus: Light is focused by the cornea and lens at the retina.

Adjective modifier

  • clear: It is replaced by clear cornea removed in the same manner from the donor eye.
  • human: She said: " Unfortunately for patients awaiting a new cornea there is no alternative to a donated human cornea.
  • new: She said: " Unfortunately for patients awaiting a new cornea there is no alternative to a donated human cornea.
  • damaged: The dog was diagnosed with smoke inhalation induced pneumonia and has two damaged corneas.
  • artificial: Potentially millions of people around the world could benefit from new research by a Lancaster University academic to develop an artificial cornea.

Modifies a noun

  • transplant: The second cornea transplant was carried out in March 2001.
  • transplantation: Cornea transplantation: Q & A Find out more Campaign with us!
  • donation: Supporting 100 years of cornea donation 7 December 2005 marks the 100th anniversary of the world's first cornea transplant.
  • donor: Eye bank appeal for donors PEOPLE plagued by eye problems could have their sight restored if more cornea donors could be found.

Noun used with modifier

  • donor: The recipient's immune system must overcome the factors involved in immune privilege to reject the donor cornea.
  • rabbit: Transplantation of preserved human amniotic membrane for surface reconstruction in severely damaged rabbit corneas.

Preposition: of

  • eye: In some species eg snakes, the cornea of the eye appears blue, then white prior to shedding of the skin.

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