Be prudent for myopia

Educational authorities should not take the risk of undertaking researches on how to prevent myopia in students, says an article in Yangcheng Evening News. The following is an excerpt:

For long school authorities have racked their brains trying to prevent myopia in students. And now, educational authorities in Guangzhou have come up with an all-new idea - wear presbyopic glasses.

This method of preventing short-sightedness still needs to be further studied, and it must be reasonable.