Thanks for your question, and for sending the photo. Although there appear to be differences in the size of the eye (the vertical aperture), as well as the height of the creases, it’s important to assess these with the eyes in a neutral gaze (head not tilted and looking straight ahead).
If there are differences in the size of the eye, this will need to be corrected by adjusting the levator muscle in the upper eyelid (ptosis surgery). The height of the eyelid crease can be adjusted by correct placement of the skin incision, as well as by removal of small amounts of skin.