The Collaborative International Dictionary of English v.0.48:

Eyesight \Eye"sight`\, n.
   Sight of the eye; the sense of seeing; view; observation.
   [1913 Webster]

         Josephus sets this down from his own eyesight. --Bp.
                                                  Wilkins.
   [1913 Webster]

WordNet (r) 3.0 (2006):

eyesight
    n 1: normal use of the faculty of vision [syn: eyesight,
         seeing, sightedness]