'Eye' in the Bible

All things are full of labour; man cannot utter it: the eye is not satisfied with seeing, nor the ear filled with hearing.

There is one alone, and there is not a second; yea, he hath neither child nor brother: yet is there no end of all his labour; neither is his eye satisfied with riches; neither saith he, For whom do I labour, and bereave my soul of good? This is also vanity, yea, it is a sore travail.