Astigmatism correction implant

As some or all (at least one or two) of you probably, but not certainly, know, astigmatism is a vision deficiency caused by the eye not being completely spherical. Wikipedia tells me this is quite frequent, apparently one out of three people suffer for it. I've been wearing glasses since the age of 4, so this piece of statistics doesn't make me feel any better. But anyway. Currently the permanent solution for this is obtained through refractive eye surgery, which means subjecting your eye(s) to terrifying cutting/lasering procedures representing variable degrees of risk. So I thought that instead of using such techniques, other avenues could be explored. For example, isn't the eye flexible? It is. I can actually correct my astigmatism by pressing my eye on a certain spot with my finger. So why not insert a subdermal rigid implant on the eye socket that would slightly change the shape of the orbit, correcting the shape of the eye in turn?

P.S.: apart from the fact that when your eye is not looking exactly straight you would just get a different astigmatism then the one you initially had...