Yaremchuck and Eppley are the most popular surgeons that do these, but neither of them seems to have great results in reducing sclera show.
I've found a bit of text written by Eppley that says orbital rim implants will not help lower lid position, the canthopexies needed to install them can help slightly.
http://www.eppleyplasticsurgery.com/will-orbital-rim-implants-raise-the-lower-eyelidsSo, I wouldn't expect much improvement in the lower lid department, honestly.
Wish I knew of a good fix, i've got it too and haven't really found a viable solution yet. :/