“Vision” or “eyesight”?

“Vision” and “eyesight” are both used to mean the ability to see.

When I go to have my eyes tested, I can say that the optician is checking my eyesight or is checking my vision; the meaning is the same.

(A scientist might say that eyesight is what happens in the eyes and vision is what happens in the brain – but that isn’t important for everyday use.)

“Vision” also has other uses. It can refer to:

• What we see:

Examples

• The parents kept the child in their vision at all times.
• The lorry blocked the pedestrian’s vision of the road.

• Something beautiful:

Examples

• The view from my hotel window was a true vision of nature.
• The sea at sunset was a vision of loveliness.

• A hope or intention for the future:

Examples

• She has a vision of becoming a successful artist.
• The company’s vision is to be the best in the country.

•  The picture on a television screen:

Example

• This television is getting old; the vision needs adjusting.

• Something seen in a dream or religious experience:

Example

• The priest saw a vision of the saint.
• He had a vision of the future.

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Thanks to Vladislav for the question