A. Eyes are even busier when we are having a sleep. B. Your eyes can help you see and understand the world. C. If we have trouble seeing things, we should see a doctor. D. They help humans connect with other people by showing feelings. E. It is to ask everyone to look after their eyes and keep them healthy. F. Eat a"rainbow" every day with many coloured fruits and vegetables. |
National Eye Health Day falls on June 6th every year in China.
Why are eyes so amazing?
They work hard every day, doing homework, watching television and playing sports. Eyes have been called"windows to the soul(心灵)". For example, they might look big and shiny when we' re happy to see someone.
How do eyes work?
The eyes work by seeing light and then helping the brain turn this light into pictures. Dr Cheri Wiggs says that every night we experience a step of sleep called rapid(快速) eye movement(REM), which happens usually when we dream. Even though our eyelids(眼皮) are closed, our eyes are moving back and forth, up and down.
How can we take care of eyes?
Starting with a healthy eating habit is important. Green vegetables such as spinach, and fish like salmon are good for eyesight. If we spend a long time watching films or playing video games, take breaks every 20 minutes to give our eyes a rest.
