Cornea: What It Is, Common Disorders & Preventing Injury - Cleveland Clinic
2024年1月9日 · 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
2023年11月16日 · Your cornea is your eye’s clear, protective outer layer. It acts like a barrier against dirt and germs, and it helps filter out some of the sun's damaging ultraviolet light. It also plays a key...
Cornea: Anatomy, Function, and Treatment - Verywell Health
2022年10月25日 · The cornea is the clear dome of tissue at the front of the eye. It connects smoothly to the sclera (the white part of the eye). The cornea refracts light through the lens below it, which allows the eye to process images. Injuries to the cornea can impair a person’s vision.
Cornea - Wikipedia
The cornea is the transparent front part of the eye that 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 .
Cornea - Definition and Detailed Illustration - All About Vision
2019年2月27日 · The cornea is the clear front surface of the eye. It lies directly in front of the iris and pupil, and allows light to enter the eye. The cornea has five layers.
Corneal Conditions - National Eye Institute
2024年6月20日 · 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 | 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 Function, Definition & Anatomy | Body Maps - Healthline
2018年1月19日 · The cornea’s main function is to refract, or bend, light. The cornea is responsible for focusing most of the light that enters the eye. The cornea is composed of proteins and cells.
Cornea - American Academy of Ophthalmology
2016年3月28日 · The clear, dome-shaped window of the front of your eye. It focuses light into your eye. How the Eye Works.
Cornea Research Foundation of America - What is the Cornea?
The cornea is the clear tissue covering the front of your eye. Like the crystal on your watch or the windshield to your car, your cornea serves as a protective window that allows light to enter your eye and come to focus on your retina. The cornea must remain clear for …