Droopy lashes/eyelid ptosis. (photos)

9 years ago I had a browlift that corrected the 'heavy look' problem (it has descended considerably since), but I realized that my main problem is the 'sad look' generated by what appear to be two factors (photos): the droop of the eyelashes laterally, and the fact that my eyes never really seem fully open. What can be done to correct this? I've read on canthopexy, canthoplasty, etc., but I'd like to know all my options, what can be achieved, what they entail, etc. Thank you!