inflammation of the cornea, often caused by infection or injury and characterized by pain, blurred vision, and sensitivity to light

the transparent layer at the front of the eye that covers the iris and pupil; also called [[角膜|角膜|jiao3 mo2]]

A thin lens made of polymer material that is placed directly on the surface of the cornea to correct vision; also known as [[隐形眼镜|隱形眼鏡|yin3 xing2 yan3 jing4]]

cloudiness or scarring of the cornea that interferes with vision