Eye health
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How often should glasses be replaced? What are the differences among people of different age groups?
How often should spectacle lenses actually be replaced? Presumably, most people will keep using the same pair of glasses until they can no longer be used as long as the lenses are still clear and the frames are not broken and can still be worn.
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I have summarized eight of the most important pieces of knowledge related to eye health and am sharing them with you all for science popularization. Each point is closely related to our daily use of eyes, so you must read them!