It is true that you have ptosis. However, the ptosis does not affect just one eyelid. Both eyelids have ptosis. It is the presence of ptosis that makes correcting eyelids like your possible. What is going on with the eyelid is that you have too much platform showing, the platform that is visible contains too much skin and orbicularis oculi muscle. Lifting the eyelid with ptosis surgery will make the platform look smaller and also open the eyes so they appear brighter. Removing skin and muscle below the upper eyelid crease will thin and smooth the upper eyelid platform and allow the current eyelid folds to appear smoother. They are being ruffled by the thickish upper eyelid platform. The lower eyelid situation is more complex and it is possible that you might be pretty satisfied by just correcting the upper eyelids at this time. My website has examples of this type of surgical approach to fix Asian eyelids.