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If you cross your eyes they will stay that way

From bullshitopedia
If you cross your eyes they will stay that way
FALSE
"If you cross your eyes for too long, or someone slaps your back while you do it, your eyes will get stuck crossed forever."
Domain Health & Medicine
Tactic Fabrication
Era Historical
First seen 20th century
Origin Parents' warnings to children making faces
Last reviewed 2026-10-30
Further reading: books on Health & Medicine

Generations of children have been warned that their eyes will "stay that way" if they keep crossing them. It is often said about pulling faces too.

What the evidence shows

  • Muscles relax. Crossing the eyes on purpose uses the eye muscles briefly. When a child stops, the muscles relax and the eyes return to normal.
  • Real crossed eyes. Strabismus, a misalignment of the eyes, is a real condition caused by problems with eye muscles, nerves or vision. It is not caused by crossing the eyes for fun.
  • When to see a doctor. Eye doctors advise checking with a professional if a child's eyes seem to wander or cross when they are not doing it deliberately.

Why it matters

Scary warnings can stop a behavior, but they can also stop children from mentioning real symptoms. Accurate explanations work better.

Sources

  • American Academy of Ophthalmology, "Can Crossing Your Eyes Make Them Stay That Way?"
  • American Association for Pediatric Ophthalmology and Strabismus, "Strabismus."
  • Scientific American, "Fact or Fiction: If You Cross Your Eyes, They Will Stay That Way," 2008.