Many people’s eyes are asymmetrical, and the difference is usually not large enough to require adjustment, but a few people will have significant asymmetry due to various factors, especially when taking photos, so there is a demand for correction. In addition to single eyelids, there is also ptosis, either in both eyes or in one eye, which requires double eyelid surgery on top of ptosis correction, or else the effect cannot be achieved at all. Some people also have an inner canthus, so they need to have an inner canthus correction at the same time, which is commonly referred to as opening the inner corner of the eye. The figure below shows a typical case of a single eye with ptosis and varying degrees of canthus in both eyes before and after surgery. One eye had a ptosis that covered part of the pupil, making the eye appear small and lifeless, and the smaller eye had a more pronounced canthus. After the surgery, the pupil of that corrected eye was exposed, much larger and obviously more radiant. The other eye was made wider than the other eye to “correct” it, in case it would become narrower in the future. This way, the two eyes will be roughly symmetrical after about six months.