Mekhenty-Irty is a god alternatively blind and indicator, of which the right eye was the left sun and it the moon, which was compared later to the god Haroëris (Horus the Large one).

With Létopolis, he cured the diseases of the eyes. So thereafter, Haroëris is invested control of the eyes and, near Re, it brings back the solar eye which had forsaken the radiant god, making of him That who lights the world of his eyes, the two luminaries .