为什么会近视

Nearsightedness, also called myopia, happens when people can see things clearly up close but not far away. This often starts in childhood and can get worse over time.

近视，又叫做近视眼，是指人们在看近处的东西时很清楚，但看远处的东西时就不清楚了。这通常从童年开始，并且可能会随着时间的推移而变得更严重。

One main reason for nearsightedness is spending too much time looking at screens, like phones, computers, and tablets. Reading books very closely can also cause it.

近视的一个主要原因是花太多时间看屏幕，比如手机、电脑和平板电脑。近距离阅读书籍也会导致近视。

Another reason is not getting enough outdoor time. Sunlight helps our eyes grow properly.

另一个原因是户外活动时间不足。阳光有助于我们的眼睛正常生长。

Genetics also play a role; if your parents are nearsighted, you might be too.

遗传也起作用；如果你的父母是近视，你也有可能是近视。

To prevent myopia, take breaks from screens, go outside more, and keep books and screens at a proper distance from your eyes.

为了预防近视，要定时休息，不要长时间看屏幕，多去户外活动，并且保持书本和屏幕与眼睛的适当距离。