Dear annieandrus,Your photo demonstrates a subtle asymmetry which has little to do with the eyelids themselves, but rather with underlying bony structure of your eye sockets (bony). As others have mentioned, very few people are perfectly symmetrical. Based on your photo, your right eye seems slightly more open, and lower in position compared to your left eye. This is likely due to a bony asymmetry between your two eye sockets: Your right eye socket is probably slightly larger than your left. Another sign of this is the position of your eyebrows: your right eyebrow is slightly higher than the left. Although an upper blepharoplasty will improve the upper eyelid appearance on both sides, I respectfully disagree with others who suggest it can improve the asymmetry. The subtle asymmetry will almost certainly remain. Having said this, I agree with the others that this asymmetry is rather mild, and very common if you look more carefully.