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double vision

noun [U]
 
 

Definition

a problem with your sight in which you see two of everything, usually with one image partly covering the other: He suffered headaches and double vision after hitting his head in the accident.Eyesight, glasses and lensesUsing the eyesThe eye and surrounding areaOptics, microscopy and lasers
(Definition of double vision noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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