The Collaborative International Dictionary of English v.0.48:
Oxyopia \Ox`y*o"pi*a\, Oxyopy \Ox"y*o`py\, n. [NL. oxyopia, from Gr. 'oxy`s sharp + ??? sight.] (Med.) Excessive acuteness of sight. [1913 Webster]WordNet (r) 3.0 (2006):
oxyopia n 1: unusually acute vision