Bone asymmetry causing one eye to be higher than the other. Can this be fixed with orbital floor implants?

All individuals have facial asymmetry, and the degree of asymmetry you display is very much within normal limits and within one standard deviation. You should not have surgery for mild facial asymmetry. The procedure you described is inappropriate in reducing the intra-orbital volume will push your eyeball forward creating exophthalmus.
Most individuals have orbital rims that sit higher on the left then on the right, at least the superior rim of the socket This typically follows with the left brow, setting slightly higher and most individuals. The human face is not symmetrical on anyone. Neither is the body. Symmetry is not some aesthetic ideal. Symmetrical faces have a strange appearance, and are not as attractive as those who have a natural asymmetry. If you look at computer generated images of perfectly symmetrical faces, you’ll recognize they have a very odd look to them and the reason for this is you’ve never seen a person with a symmetrical face
I use word recognition so my apologies for the grammatical errors.
Perhaps spend a little less time, looking at yourself in the mirror, a little more time pursuing the pleasures of life.
Best,
Mats Hagstrom, MD