Is being blind such a bad thing? Can we assume that Yitzach made so many bad decision? Who is Yitzach and what was his motivation in our Jewish history? Yitzach was an expert in finding water where there seems to be no water. Have you ever have seen a man who digs in the rocky desert for water? Yitzach was a great man of strength to dig for the answers of life and the deep waters of Torah. So being blind can help sharpen one’s senses if you are sensitive to Hashem’s ways.
Sometimes having your eye open can lead to doing Hashem’s will.
Genesis 3: 7 And the eyes of them both were opened, and they knew that they were naked; they sewed fig-leaves together, and made themselves girdles. 8And they heard the voice of the LORD God walking in the garden toward the cool of the day; and the man and his wife hid themselves from the presence of the LORD God amongst the trees of the garden. 9And the LORD God called unto the man, and said unto him: ‘Where art thou?’
Can you see where you are? Faith is knowing what your eyes do not see and not knowing what your eyes do see. Faith is not blind.