I have amblyopia in one eye too, try doing LSD or one of its semi-legal analogues. While on 300µg I was able to read with the lazy eye and got 3d vision. I was looking at a tree with lots of branches and suddenly it clicked. I retained 3d vision for about 2 weeks afterwards, progressively weaker.

Interesting experience. 3d vision really means depth is directly perceived in the same manner as width and height. Now I understand why so many people are afraid of heights.