Tunnel-vision meaning

Vision in which the visual field is severely constricted, as from within a tunnel looking out.
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A narrow outlook; specif., the focus of attention on a particular problem without proper regard for possible consequences or alternative approaches.
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Vision in which the visual field is severely constricted, as from within a tunnel looking out.
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An extremely narrow point of view; narrow-mindedness.
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A restricted field of vision as the result of looking through some type of object or a medical condition.

It took some time for him to get used to the tunnel vision he experienced while looking through a periscope.

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(figuratively) To focus one's attention on one specific item or event, to the exclusion of everything else.; a one-track mind.

After Mark fell victim to tunnel vision, nothing you could say to him would change his mind.

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An extremely narrow point of view; narrow-mindedness.
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