This requires high definition blepharoplasty. You have bilateral lash ptosis and a tiny amount of heaviness in the left upper eyelid compared with the right side. I do a procedure that I call structured microblepharoplasty to address small issues like this. Typically this includes an anchor blepharoplasty with a low crease incision, an anchor blepharoplasty to support the eyelashes, and minimal ptosis correction. Study the accompanying video.
From your photograph there appears to be more of the eyelid platform visible on your left upper eyelid (the eyelid seen on the right side of your photograph). The degree of asymmetry is quite small and probably not visible to anyone other than you. This could potentially be treated with a blepharoplasty, dermal fillers or fat injections. However, no matter which technique was used, there is likely to be some asymmetry afterwards. I would recommend that you speak to an experienced eyelid surgeon, but would also caution you that since the asymmetry is not that obvious that you consider not treating it at this time.