An extreme or irrational fear of double vision or of seeing double.
From 'diplopia' (double vision, from Greek 'diplos' + 'ops' meaning eye) + 'phobos' (fear in Greek) + '-ia' (condition). A psychological/medical term for a specific phobia.
Imagine being terrified of seeing double—so someone with diplopiaphobia is haunted by the thought that their eyes might stop working together properly. It's a genuinely rare but very distressing phobia!
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