Her eyes behold afar off

27 Doth the eagle mount up at thy command, and make her nest on high?
28 She dwelleth and abideth on the rock, upon the crag of the rock, and the strong place.
29 From thence she seeketh the prey, and her eyes behold afar off. - Job 39

* An eagle in flight can reputedly sight a rabbit two miles away.
* The retina's fovea has one million cells per mm2 as compared to 200,000 per mm2 in humans.
* An eyesight estimated at 4 to 8 times stronger than that of the average human.
* Their eyes are stated to be larger in size than their brain, by weight
* Eagle tears moisten the eyes and contain the chemical lysozyme which protects against salt water and also destroys bacteria, thus preventing eye infections. The first chemical synthesis of a lysozyme protein was finally achieved in 2007 by Thomas Durek in Steve Kent's lab at the University of Chicago who made a synthetic functional lysozyme molecule.
* Generally, eagles do not suffer from myopia (nearsightedness) and hyperopia (farsightedness); those who have these defects cannot hunt easily and eventually starve to death. - Eagle eye - Wikipedia

The design of the eagle was a tough one!