What can I do about my uneven eyelids/eyebrows? (photo)

Many different situations can lead to uneven eyelids. Some of these can be treated non-surgically and conservatively, even using some very advanced injection techniques with filler or very precise placement of Botox. Some situations truly do require surgery to resolve. 
It is important that you seek a consultation with an eyelid expert to delineate the exact cause and treatment options.
To ensure you are receiving the highest level of care, seek out a modernly trained, new-school dermatologic surgeon, oculoplastic surgeon, facial plastic surgeon or plastic surgeon who is board certified and fellowship trained in one of these "core four" cosmetic specialties. Membership in organizations like the American Academy of Facial Plastic and Reconstructive Surgery help to identify a highly trained surgeon.
Cameron Chesnut
#realself500 Physician

It is difficult to tell from your photos, but you either have ptosis of the brow or ptosis of the upper eyelid. Either way, a consultation With a facial plastic surgeon or oculoplastic surgeon would help distinguish between the two. The important point is that prior to undergoing a procedure for your brow, be sure to at least have eyelid ptosis ruled out. 

Uneven eyebrows is often due to the body trying to compensate for a droopy eyelid.  I would suggest being evaluated by an oculoplastic surgeon.  Often fixing the drooping eyelid will fix the brow problem.  Good Luck