Tunnel visionとは 意味・読み方・使い方

名詞

tunnel vision (uncountable)

1. A restricted field of vision, especially as the result of looking through some type of object or a medical condition.

   Some people experience tunnel vision during a panic attack.

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

   • 2000, Mark L. Warner, The Complete Guide to Alzheimer's—Proofing Your Home, Purdue University Press, →ISBN, page 378:

     Often people with AD have a form of tunnel vision and don't see obstacles […]

   • 2008, Curt R. Bartol; Anne M. Bartol, Introduction to Forensic Psychology: Research and Application, SAGE, →ISBN, page 64:

     The most frequent visual distortion was “tunnel vision,” in which the officer became so focused on one object that everything else at the scene went unnoticed. This phenomenon is frequently experienced by victims of a terrifying event as well.

2. (figuratively) The tendency to focus one's attention on one specific idea or viewpoint, to the exclusion of everything else.

   Synonym: one-track mind

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

   • 2014, Paul Nijar, Everything I Thought I Was & What I Came to Be, Xlibris Corporation, →ISBN, page 209:

     Having friends that are too much like yourself force you to have a tunnel vision. I believe tunnel vision is a form of blindness. Your span of thinking becomes too narrow, and you close yourself off of so many other great ways of thinking in life.

Further reading

• tunnel vision on Wikipedia.