No worries, I have no problems sharing what it is here.
It is a condition called keratoconus (every time I hear it or think it, I always think of Kerry Katona) it is where the collagen in my eyes have become too weak to keep the cornea in shape. This allows the cornea to bulge out and you loose the ability in the eye to focus.
My right eye has become as bad as can be, meaning that no focus at all and everything is just one big blur, My left eye, I have triple vision. But as I am really only using my left eye to see anything, it gets strained quickly.
The only chance I have to get my sight back is with cornea transplants.
I think the depth perception is mostly down to vision only in one eye.
Probably more info than needed, but always better to give it all than just small bits