Hi there, This might seem counterintuitive but a small amount of Botox or Dysport might be the best option to achieve the appearance you are looking for, and would have the advantage of not being permanent in case you ultimately decided it wasn't exactly what you wanted. By weakening the ...
Canthopexy by itself will not raise the lower eyelids unless the corner of the eye is also pinched which is not desired. What truly raises the lower eyelids is lower eyelid retraction surgery which can be combined with canthopexy or canthoplasty.
Broadly speaking, restrictive strabismus (eye motility problems due to scar tether) can occur with eyelid surgery. Without seeing your photos, it's hard to tell whether you have pseudo-strabismus (the appearance of eye motility/alignment problems usually due to the eyelid...