Synonyms for Keen-sighted (same or very similar meaning)
WordNet sense 1 (having very keen vision):
hawk-eyed, lynx-eyed, sharp-eyed, argus-eyed, quick-sighted, sharp-sightedWordNet sense 2 (able to see):
sightedWordNet sense 3 (capable of seeing to a great distance):
eagle-eyed, farseeing, longsightedWordNet sense 4 (able to see distant objects clearly):
farsighted, presbyopicFrom the ODE community, based on WordNetadd/edit