Don't wait until your vision deteriorates to have an eye exam.

不要等到你的视力变差才去做检查。

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We encourage you to have an annual visual exam with the eye doctor of your choice to maintain healthy vision.

我们鼓励您必须每年与您选择的眼科医师考试，视觉保持健康视力。

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If you don't wear glasses or contacts, have no symptoms of eye trouble, and are at a low risk of developing eye diseases, such as glaucoma, it's recommended that you have an eye exam at the following intervals.

CNN: Nearsightedness