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cornea    音标拼音: [k'ɔrniə]
n. 角膜

角膜

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  • Cornea - Wikipedia
    The cornea is the transparent front part of the eye which covers the iris, pupil, and anterior chamber Along with the anterior chamber and lens, the cornea refracts light, accounting for approximately two-thirds of the eye's total optical power [1][2] In humans, the refractive power of the cornea is approximately 43 dioptres [3]
  • Cornea: What It Is, Common Disorders Preventing Injury
    What is the cornea? Your cornea is the clear, dome-shaped covering at the front of each of your eyes It’s like your eye’s version of a windshield It keeps debris, germs and more out Its specific shape plays a key role in how your eyesight works and filters some ultraviolet (UV) rays
  • Cornea: Anatomy, Common Symptoms, and Treatments - WebMD
    What Is a Cornea? Your cornea is your eye’s clear, protective outer layer, sitting at the front like a car windshield It acts like a barrier against dirt and germs, and it helps filter out
  • Corneal Conditions - National Eye Institute
    The cornea is the clear outer layer at the front of the eye There are several common conditions that affect the cornea Read about the types of corneal conditions, whether you are at risk for them, how they are diagnosed and treated, and what the latest research says
  • Cornea - LWW
    Cornea brings together the latest clinical and basic research for corneal specialists and for all general ophthalmologists Subscribe to the journal today!
  • Cornea | Structure, Function Disease | Britannica
    Cornea, dome-shaped transparent membrane about 12 mm (0 5 inch) in diameter that covers the front part of the eye Except at its margins, the cornea contains no blood vessels, but it does contain many nerves and is very sensitive to pain or touch
  • Cornea - Definition and Detailed Illustration - All About Vision
    Here is some basic information to know about this important part of the eye The cornea is the clear front surface of the eye It lies directly in front of the iris and pupil, and it allows light to enter the eye Viewed from the front of the eye, the cornea appears slightly wider than it is tall
  • Cornea - American Academy of Ophthalmology
    The clear, dome-shaped window of the front of your eye It focuses light into your eye Read an overview of general eye anatomy to learn how the parts of the eye work together All content on the Academy’s website is protected by copyright law and the Terms of Service
  • What Is the Cornea? Function, Layers Conditions
    The cornea is the clear, dome-shaped front surface of your eye It covers the iris (the colored part) and the pupil, acting as both a protective shield and the eye’s primary lens Despite being only about half a millimeter thick at its center, the cornea is responsible for roughly 70% of the eye’s focusing power, bending light at about 43 diopters out of the eye’s total 60
  • How the Eyes Work - National Eye Institute
    All the different part of your eyes work together to help you see Learn the jobs of the cornea, pupil, lens, retina, and optic nerve and how they work together





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