vision

vision
vi‧sion S3 W2 AC /ˈvɪʒən/ noun1. [uncountable] the ability to see
   SYN  sight ⇨ visual:
    She suffered temporary loss of vision after being struck on the head.
    Tears blurred her vision (=made it difficult for her to see).
    good/normal/poor etc vision
    children who are born with poor vision
    twenty-twenty/20–20 vision (=the ability to see perfectly)
    night vision (=the ability to see when it is dark)
2. [uncountable] the area that you can see:
    a figure at the edge of her vision
    sb’s field/line of vision (=the area someone is able to see without turning their head)
    As the cars overtake you, they are temporarily outside your field of vision.
3. [countable] an idea of what you think something should be like
    vision of
    He had a clear vision of how he hoped the company would develop.
    vision for
    The President outlined his vision for the future.
    grand/powerful/original etc vision
    a grand vision for the country
4. have visions of something if you have visions of something happening, especially something bad, you imagine it happening:
    I had visions of the kids getting lost and getting abducted by some weirdo.
5. [countable] something that you seem to see as part of a powerful religious experience:
    She had a vision in which Jesus appeared before her.
    in a vision
    He became a monk after seeing Saint Apollinaris in a vision.
6. [uncountable] the knowledge and imagination that are needed in planning for the future with a clear purpose:
    We need a leader with vision and strong principles.
    his enthusiasm and breadth of vision
7. a vision of beauty/loveliness etc literary someone who is very beautiful
8. [uncountable] the quality of a picture that you can see on a television
     

COLLOCATIONS

■ ADJECTIVES/NOUN + vision
   ▪ good I have good vision in my right eye.
   ▪ normal Short-sighted children may be unaware of what people with normal vision can see.
   ▪ perfect Babies aren’t born with perfect vision.
   ▪ 20–20 vision (=perfect vision) The soldier had 20-20 vision.
   ▪ poor/defective Her vision was quite poor and she always wore glasses.
   ▪ blurred (=not clear) He complained of headaches and blurred vision.
   ▪ night vision (=the ability to see when it is dark) Cats have good night vision but can’t see colour very well.
   ▪ peripheral vision (=your ability to see things to the side of you when you are looking ahead) She could read easily, but her peripheral vision was poor.
   ▪ double vision (=when you see two of everything around you) One of the symptoms of the illness is double vision.
   ▪ tunnel vision (=when you can only see what you are directly looking at) A pupil with tunnel vision may have difficulty finding the words written on the blackboard.
■ verbs
   ▪ blur sb’s vision (=make someone not see clearly) Tears of fury blurred her vision, and she blinked them away.
   ▪ clear your vision She blinked to clear her vision.