Thin-lidded eyes = see yet not rightly; wild itch / lichen / extreme passion

Cyril: …eyes, the one least deprived of seeing, yet not having to do this healthily. Of which sort some would be, for whom understanding is present, yet the choosing to think rightly is not seen present. For some seeing, he says, the good, turn aside the inclination of their own wills unto things not fitting; and others, even being able not to be without share of dogmatic rightness, only not themselves damage their own mind, going unto a most unbeautiful hunt of thoughts, and receiving nothing healthy of the glory upon God; of which sort are especially children of heretics, and Jews besides, who believe the Father to be God, yet most mindlessly thrust away the Son who has appeared from him according to nature. Therefore also true upon them is the hymned through a prophet’s voice, ‘Eyes for them, and they do not see.’ (Psalm 115:5) For seeing benefits nothing, unless somehow the seeing healthily should be foreseen for some, just as indeed we were saying justly that both lameness and the crushing of the foot have been ranked in equal word; for it will differ wholly nothing, from not being able to go at all, the somehow not going healthily, clearly the path as in affairs, and the road as in works.

Palladius: You speak well.

Cyril: And a human will not come forward about to sacred-work, in whom if there should be upon him wild itch, or lichen, or single-testicled, or everyone in whom there is a blemish. So then to wild itch must be likened the most outlandish of the passions, poured down upon mind with sharper flows, and going beyond every measure, and having beginning from pleasure, yet finishing unto a bitter end. Or do you not say that for each of the miss-doings both some measure and unmeasure of the evil is seen?

Palladius: How did you say?

Cyril: The one worsted by bodily pleasure—would he not suffer this both moderately and beyond measure? For some are only worsted, and are sick restrainedly; and others also come unto the tip of the evil, and are sick the pleasure raging uncontrollably, so as even to slip beyond the passions according to nature themselves.

Palladius: I understand what you say.

Cyril: So then upon each of the evils the having inclined outlandishly unto beyond word, and beyond measures of the in custom and among many, would thereafter be said the wild itch. And lichen besides, any passion whatsoever, always creeping unto the broad, and having unceasing the increase unto the worse. And the divine law wills that the falling passions must be contracted by us, and led unto the lesser. You will think some such thing hearing: ‘If spirit of the one exercising authority should rise upon you, do not leave your place, because a healing will stop great sins.’ (Leviticus 21:20) For the unreproved of the passions always creep toward the more shamefully having; and they seize heart and mind, and lead unto complete destruction. So then the base must be blamed by us, with the runnings-up unto the better wrapping (Ecclesiastes 10:4)