Definition of "sharp-sighted" [sharp•-sight•ed]

• Having keen eyesight. (adjective)
• Keenly perceptive or alert. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The eagle soars at high altitudes, it is quick and sharp-sighted, and it has a rich symbolic history."
• "However, the sharp-sighted viewer got an added value: an entire plot line, completely independent, that took place silently out of focus at the background."
• "Tasslehoff and Woodrow stumbled along behind the sharp-sighted dwarves."