cor
nea
复数形式
corneas
1
角膜, 眼睛的透明层
(anatomy) the transparent layer that covers the outside of the eyeball
The cornea is the transparent, dome-shaped layer at the front of the eye that covers the iris and pupil. It plays a crucial role in refracting and focusing light onto the retina, allowing us to see clearly. The cornea is composed of specialized cells and is responsible for most of the eye's focusing power. It is essential for maintaining the integrity of the eye and protecting it from external elements.
- The cornea is the transparent, dome-shaped layer covering the front of the eye, responsible for refracting light rays to focus images onto the retina.
角膜是覆盖眼睛前部的透明圆顶状层，负责折射光线以将图像聚焦到视网膜上。
- Contact lenses sit on the surface of the cornea, providing vision correction for individuals with refractive errors.
隐形眼镜位于角膜表面，为有屈光不正的人提供视力矫正。
- The cornea lacks blood vessels, obtaining nutrients and oxygen directly from tears and aqueous humor.
角膜缺乏血管，直接从泪液和房水中获取营养和氧气。
- Injuries or infections affecting the cornea can cause pain, blurred vision, and sensitivity to light.
影响角膜的损伤或感染会导致疼痛、视力模糊和对光敏感。
- Corneal transplantation, also known as a corneal graft, may be necessary to restore vision in cases of severe corneal damage or disease.
角膜移植，也称为角膜移植术，在严重角膜损伤或疾病的情况下可能是恢复视力所必需的。