Sometimes they have been overwhelmed by Tigers or Phytons because of their curious behaviour and because of their poor eye sight they get too close for comfort.

有时，牠们因为牠们好奇的行为以及因为牠们可怜的视力靠得太近而受到老虎或者爬行动物的打击。

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The poor stability and balance of the old people resulted from the poor flexibility, eye-sight, and vestibule function.

老年人步态功能及平衡能力下降与关节柔韧性降低、视力减弱、前庭功能下降有关。

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Poor eye sight can also result in a person being unable to read the labels on medication and accidentally taking the wrong dose.

BBC: It is often too late to remedy a problem once symptoms occur

The Ninth Circuit decision denying VSP tax-exempt status threatens to "divert to the federal treasury funds from the Sight for Students program, " depriving the poor kids and jeopardizing their eye care, the charities argue in a friend-of-the-court brief.

FORBES: Supreme Court Question: What's A Charity?