So, how to improve eyesight through swinging?

那么如何通过摇摆提高视力呢？

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One way to improve eyesight is to control negative emotions like angry, frustration, resentment and strain.

一种提高视力的方法是控制负面情绪，比如愤怒、沮丧、怨恨和紧张。

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So let us begin to learn on how to improve eyesight naturally with the basic understanding: relaxing and eliminating stress.

那么，我们就开始学习如何通过基本训练提高视力吧：放松和消除压力。

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For example, laser surgery to substantially improve eyesight costs a third of what it did a decade ago.

FORBES: Sick Solution

The RAIB also said it appeared that Mr Mackay was not wearing spectacles to improve his distance vision as he was advised at eyesight examinations in 2006 and 2009.

BBC: Eyesight 'a cause' in fatal crash at level crossing