2 Kings 25:7

And they slew the sons of Zedekiah before his eyes, for they were guilty with their father and might have continued the dynasty, and put out the eyes of Zedekiah, they blinded him, probably by passing a heated metal rod over his open eyes, and bound him with fetters of brass, doubly fettered hand and foot, and carried him to Babylon. Thus Zedekiah was maimed for life and had to give up all hope of ever being able to rule again.