(Medicine) med a condition of the eyesight in which there is no problem with vision when one eye is involved but there is impairment to vision that uses both eyes
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a defect of the eyesight in which vision is best when only one eye is open.See also: Eyes
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