If one has lower eyelid retraction could orbital rim implants actually raise the lower lids to show less scheral show?

Lower lid retraction can due to a number of factors and is
a reflection of the relationship between the globe, the facial skeleton, and
the overlying soft tissues. Prominent globes, a negative skeletal vector, a
lack of eyelid skin, lax lower lids, or excessive downward pull of the cheek
skin can all cause scleral show individually or in combination. Treatment for
scleral show, therefore, is tailored to the cause and can include infraorbital
implants, orbital decompression, skin or mucosal grafts, a canthopexy, and / or a
midface lift. A detailed examination will help delineate the best
option. Follow-up with a plastic surgeon would be the next best step.

Orbital rim in class will not improve lower eyelid retraction. Lower eyelid retraction is due to either a shortage of skin or shortage of the tissue between the skin and the inner eyelid mucosa.

Yes, the combination of orbital rim implant with soft tissue lifting over them can improve or eliminate scleral show. Best to see an oculoplastic surgeon.