Apparently WITH the atificial lens it clears up their near vision (like for humans, reading) but without the lens they can see fine further but blurr out up close. I didn't get clarification if the distance vision is blurred with the lens or not. I'll have to ask that next visit in 3 weeks.In dogs the lens is removed and there may or not be an iol implanted? Apparently without an iol mid and far vision is good?