the.com/double vision
When your eyes stop cooperating and start filing separate reports.
means A condition where you see two overlapping or side-by-side images of a single object, usually because the eyes aren't aiming together or the brain isn't merging their input correctly.
from Plainly descriptive rather than borrowed from myth or Latin roots — 'double' (from Latin duplus, twofold) plus 'vision' (Latin visio, the act of seeing, from videre, to see). The phrase simply names the symptom as it's experienced: one thing, seen as two. Its medical cousin is diplopia, built straight from Greek diploos (double) and ops (eye) — a more clinical way of saying the same plain fact.
- medical term
- diplopia, from the Greek for doubled sight
- common cause
- misaligned eye muscles, not actually two objects
- quick test
- covering one eye often makes it vanish
- warning sign
- sudden onset can signal stroke or nerve damage