The eyelid crease (double eyelid) is a type of natural fold in the upper eyelid. For this fold to form and maintain a smooth, defined shape, there needs to be an adequate and evenly distributed layer of volume(Fat) within the eyelid. Based on your photos, there appears to be volume loss in the upper eyelids, along with multiple overlapping creases. These changes are commonly associated with aging, as the natural fat volume gradually decreases and the skin becomes looser over time, leading to the formation of additional folds and asymmetry. To improve the asymmetry between both eyes, I would recommend addressing the hollow upper eyelids first. This can be achieved through upper eyelid fat repositioning combined with fat grafting to restore lost volume. At the same time, excess skin can be carefully removed and a new double eyelid crease can be designed to create better balance and symmetry between both sides. This approach not only helps achieve a more symmetrical appearance but also restores a fuller, more youthful-looking upper eyelid, reducing the tired or aged appearance that can develop over time.