未及时矫正的近视，远视和散光是视觉问题的主要诱因。

Uncorrected cases of near-sightedness, far-sightedness and astigmatism are the leading cause of vision problems.

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研究显示在过去三年中那些日照较多地区的视觉问题发生率猛增。

The study shows a sharp increase in the incidence of vision problems in the sunny regions over the past three years.

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可见，停止安全更新引发的威胁远远高过“黑色桌面”的视觉问题。

Can be seen that the security update to stop the threat caused by much higher than the "black desktop" visual problem.

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There is agnosia and agnosia is a disorder which isn't blindness because the person could still see perfectly well.

还有失认症,失认症并非失明,因为患者的视觉没有任何问题

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