Definition of cornea in English:

cornea

noun

  • The transparent layer forming the front of the eye.

    • ‘These rays of light first travel through the transparent cornea, and then through the lens, which helps to focus the light.’
    • ‘The cornea, iris, and crystalline lens work together to focus light onto the retina.’
    • ‘Your cornea is transparent, allowing light to pass through much like clear glass.’
    • ‘The limbus is the thin area that connects the cornea and the sclera, the white part of the eye.’
    • ‘The cornea is kept transparent by the continuous removal of fluid by the endothelial cells.’
    • ‘A cornea transplant replaces the damaged cornea with a disc of healthy tissue from a donor.’
    • ‘Your doctor uses this light to examine the cornea, iris, lens and anterior chamber of your eye.’
    • ‘Oxygen deprivation causes tiny blood vessels to grow into the clear tissue of your cornea.’
    • ‘The iris is the colored part of the eye, which lies behind the transparent cornea.’
    • ‘The whole eye is not used, only the cornea, the transparent front of the eye, and the sclera, the white part of the eye.’
    • ‘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.’
    • ‘To see well, all layers of the cornea must be free of any cloudy or opaque areas.’
    • ‘However, cystine crystals in the cornea are not usually detectable in the first year.’
    • ‘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 colored circular membrane in the eye just behind the cornea is called the iris.’
    • ‘Corneal transplants are performed for people who have damaged or opaque corneas (the outer layer of the eye).’
    • ‘One potential concern raised by the study was the loss of endothelial cells in the corneas of patients who received the implants.’
    • ‘The spectacles seemed to protect her cornea and retina, which were not damaged.’
    • ‘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.’

Origin

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

Pronunciation:

cornea

/ˈkɔːnɪə/