Blood Secrets
Robin raised his eyebrows slightly and looked at Jabba for a few seconds, before putting the revealing moonstone on the table and focusing his gaze on a random container with his golden eyes, "This the revealing moonstone was a good addition to your purpose before you got your eye, now however you don't need it, keep practicing and you will be able to use you own microscopic eye."
Although he had rarely used his eyes for a purpose such as magnification and seeing small particles much in the past because he did not need to do such a thing, he had absolute confidence that his eyes were capable of reaching the required degree of focus if his eye was able to see patterns that All living things can not see, would it be a problem if it made his eyesight sharper for a bit?