Eyes in Hebrew is עיניים ayinim, which carries the letter ע ayin.
דַעַת Da'ath, knowledge, is spelled with ע ayin, the Kabbalistic letter signifying "perception."
Therefore, the sacred, alchemical knowledge, דַעַת, is the work with spiritual perception, spiritual insight, which is opened in us when we work with the tree of knowledge, whose roots are in Yesod-sex.
And not equal are the blind and the seeing, nor are those who believe and do righteous deeds and the evildoer. Little do you remember. -Quran 40:58
The Qur'an often speaks about the blindness of the heart, or how people who don't practice gnosis are unbelievers.
It is through the perception and quality of our mind, heart, and sex that we are judged. Only divinity can heal our spiritual eyes from the ignorance and blindness of the ego.