请输入您要查询的英文单词:

 

单词 cornea
释义

Definition of cornea in English:

cornea

noun ˈkɔːnɪəˈkɔrniə
  • The transparent layer forming the front of the eye.

    Example sentencesExamples
    • The limbus is the thin area that connects the cornea and the sclera, the white part of the eye.
    • The spectacles seemed to protect her cornea and retina, which were not damaged.
    • One potential concern raised by the study was the loss of endothelial cells in the corneas of patients who received the implants.
    • The cornea, iris, and crystalline lens work together to focus light onto the retina.
    • Organs currently in demand for transplantation include the heart, kidneys, liver, lungs, intestines, and pancreas; tissues include corneas, heart valves, blood vessels, skin, and bone.
    • The iris is the colored part of the eye, which lies behind the transparent cornea.
    • Oxygen deprivation causes tiny blood vessels to grow into the clear tissue of your cornea.
    • The colored circular membrane in the eye just behind the cornea is called the iris.
    • To see well, all layers of the cornea must be free of any cloudy or opaque areas.
    • The whole eye is not used, only the cornea, the transparent front of the eye, and the sclera, the white part of the eye.
    • These rays of light first travel through the transparent cornea, and then through the lens, which helps to focus the light.
    • A cornea transplant replaces the damaged cornea with a disc of healthy tissue from a donor.
    • The cornea is kept transparent by the continuous removal of fluid by the endothelial cells.
    • However, cystine crystals in the cornea are not usually detectable in the first year.
    • Corneal transplants are performed for people who have damaged or opaque corneas (the outer layer of the eye).
    • Your doctor uses this light to examine the cornea, iris, lens and anterior chamber of your eye.
    • Without moisture, our corneas, which serve as protective domes for the front of the eyes, would dry out and could become cloudy or injured.
    • Your cornea is transparent, allowing light to pass through much like clear glass.
    • Tissues such as corneas, skin, bone, bone marrow, cartilage, tendons, veins, and fascia also can be transplanted successfully.
    • The top layer of the cornea is not damaged by the procedure, so there is unlikely to be any pain afterwards.

Derivatives

  • corneal

  • adjective
    • Breakdown of the corneal epithelium increases the risk of stromal surface infection.
      Example sentencesExamples
      • The tissue can be used for research and possibly for new forms of deep endothelial corneal transplant.
      • In the pipeline are many other applications, including vascular, pancreatic, and corneal repair.
      • It is important to identify and remove conjunctival and corneal foreign bodies.
      • Unlike eyelid or conjunctival involvement, corneal involvement can result in significant vision loss.

Origin

Late Middle English: from medieval Latin cornea tela 'horny tissue', from Latin cornu 'horn'.

  • horn from Old English:

    The word horn is related to corn ‘a painful area of thickened skin’, and cornea (Late Middle English) through its ancestor Latin cornu ‘horn’. In to draw (or pull) in your horns, ‘to become less assertive or ambitious’, the image is of a snail drawing in its eyestalks and retreating into its shell when disturbed. See dilemma

Rhymes

California
 
 

Definition of cornea in US English:

cornea

nounˈkôrnēəˈkɔrniə
  • The transparent layer forming the front of the eye.

    Example sentencesExamples
    • However, cystine crystals in the cornea are not usually detectable in the first year.
    • The colored circular membrane in the eye just behind the cornea is called the iris.
    • The top layer of the cornea is not damaged by the procedure, so there is unlikely to be any pain afterwards.
    • One potential concern raised by the study was the loss of endothelial cells in the corneas of patients who received the implants.
    • Oxygen deprivation causes tiny blood vessels to grow into the clear tissue of your cornea.
    • The spectacles seemed to protect her cornea and retina, which were not damaged.
    • The whole eye is not used, only the cornea, the transparent front of the eye, and the sclera, the white part of the eye.
    • The iris is the colored part of the eye, which lies behind the transparent cornea.
    • Your cornea is transparent, allowing light to pass through much like clear glass.
    • Your doctor uses this light to examine the cornea, iris, lens and anterior chamber of your eye.
    • The cornea is kept transparent by the continuous removal of fluid by the endothelial cells.
    • Tissues such as corneas, skin, bone, bone marrow, cartilage, tendons, veins, and fascia also can be transplanted successfully.
    • Corneal transplants are performed for people who have damaged or opaque corneas (the outer layer of the eye).
    • Organs currently in demand for transplantation include the heart, kidneys, liver, lungs, intestines, and pancreas; tissues include corneas, heart valves, blood vessels, skin, and bone.
    • The limbus is the thin area that connects the cornea and the sclera, the white part of the eye.
    • These rays of light first travel through the transparent cornea, and then through the lens, which helps to focus the light.
    • Without moisture, our corneas, which serve as protective domes for the front of the eyes, would dry out and could become cloudy or injured.
    • The cornea, iris, and crystalline lens work together to focus light onto the retina.
    • To see well, all layers of the cornea must be free of any cloudy or opaque areas.
    • A cornea transplant replaces the damaged cornea with a disc of healthy tissue from a donor.

Origin

Late Middle English: from medieval Latin cornea tela ‘horny tissue’, from Latin cornu ‘horn’.

 
 
随便看

 

英语词典包含464360条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/12/23 10:00:31