Uncorrected cases of near-sightedness, far-sightedness and astigmatism are the leading cause of vision problems.
未及时矫正的近视,远视和散光是视觉问题的主要诱因。
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Thau said she is also seeing more near-sightedness in kids due to an increase in children who are using video games, TVs, hand-held gaming devices and computers.