Slight amounts of astigmatism usually don't affect vision and don't require treatment.

轻微的散光不会影响到视觉，也无需治疗。

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The aberration by the human eye optical structure to affect vision quality are mainly reviewed.

重点分析了由眼球的屈光介质引入的光学像差对人眼视觉质量的影响。

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Not only does corneal neovascularization seriously affect vision, but also leads to corneal transplantation failure.

角膜新生血管不但严重影响视力，而且导致角膜移植手术的失败。

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How will treatment affect my vision?

CNN: Eye melanoma

While you're at it, why not ask them for feedback on your vision for the future and how it might affect them?

FORBES: Magazine Article

The Group of international experts was tasked with preparing a succinct document that identified issues likely to affect the organisation of learning and to stimulate debate about a 21st century vision for education.

UNESCO: UK National Commission for UNESCO - Rethinking Education: Towards a global common good? Former UKNC Chair co-authors new UNESCO report