关于眼睛的英文句子
The eyes are the windows to the soul, as the saying goes. They are vital for seeing the world around us and convey emotions. The human eye is a complex organ with a lens, cornea, retina, and optic nerve. Light enters the eye through the pupil and is focused onto the retina, which contains light-sensitive cells called rods and cones. These cells send electrical signals to the brain, where they are processed into images. Eyes can change shape to focus on objects at different distances. To keep them healthy, it's important to protect them from UV rays, wear safety glasses, and maintain a healthy lifestyle. Regular eye exams can detect vision problems early.
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