Eyes (on a dish) are the emblem of St Lucy, who was blinded during her martyrdom.
the eyes are the window of the soul it is in the eyes that a person's true nature can be discerned. The saying is recorded in English from the mid 16th century, but a similar idea is found in Latin in Cicero's Orator, ‘ut imago est animi voltus sic indices oculi [the face is a picture of the mind as the eyes are its interpreter].’
have eyes in the back of one's head know what is going on around one even when one cannot see it.
See also the buyer has need of a hundred eyes, eye, fields have eyes at field, four eyes see more than two, the scales fall from someone's eyes at scales 2, pull the wool over someone's eyes.