Gregory the Dialogist

But the eyes of the wicked shall fail and refuge shall perish from them, and their hope shall be the abomination of the soul. That by the designation of 'eyes' the energy of the intention is set forth to us, 'Truth' testifies in the Gospel, saying, If thine eye shall be single, thy whole body shall be full of light. Forasmuch as if a pure intention have preceded our action, howsoever it may seem otherwise to men, yet to the eyes of our interior Judge, the body of the deed that follows after is presented pure. …

Morals on the Book of Job, Book X ↗

Thomas Aquinas

Because he had promised these rewards if Job be willing to depart from evil, he shows as a consequence that these rewards are not given to the evil man. So he continues, "The eyes of the wicked will be deficient," because they will not obtain the good which they desire. For someone's eyes are said to be deficient when he looks to obtain something which he is not strong enough to obtain. Just as the wicked cannot obtain desired goods, so too they cannot avoid evils which they suffer or fear. …

Commentary on Job ↗