Uneven eyelids following "stye" removals.
I would suggest you see an oculoplastic surgeon. There is no non-surgical way to lift your eyelids from what I have seen in your photos. Any mass of the upper eyelid (e.g. chalazion, cyst) can stretch the tendon that lifts the eyelid and result in drooping. Treatment of the stye or oil cyst (chalazion) generally does not result in ptosis, but anything is possible no having seen how severe your situation was 12 years ago. In one of your photos your left eye actually looks retracted almost like thyroid eyelid disease. Sometimes patients think they have a droopy eyelid wherein in reality the non-droopy eyelid is the problem side as it is retracted. I hope this was helpful.