'Eye' in the Bible

All these things are wearying; a man is not able to speak, the eye is not satisfied by seeing, nor filled is the ear from hearing.

There is one, and there is not a second; even son or brother he hath not, and there is no end to all his labour! His eye also is not satisfied with riches, and he saith not, 'For whom am I labouring and bereaving my soul of good?' This also is vanity, it is a sad travail.