There are multiple anatomic abnormalities that can result in facial asymmetry. These may include deformities of the orbital bones, eyelid soft tissue and eyebrows. In most cases, they are relatively minor, but in some cases, they may be severe and extremely noticeable. Depending upon the deformity, treatment may or may not be possible. Although, it's hard to tell exactly what's going on from your pictures, I suspect you have boney orbital asymmetry. In addition, you appear to have minimal eyelid ptosis and a depressed eyebrow.Asymmetry of the facial bones can be a major contributor to facial asymmetry. When this occurs, it's not unusual to have one side of the face that has a depressed orbital rim and flattened cheekbone and an eye that appears smaller than the opposite side. This is often related to a condition called plagiocephaly.When this situation arises, it's possible in some cases, to disguise asymmetry. Unfortunately, it's not possible to correct the boney deformity without major surgery. In this case, a unilateral brow lift in combination with an eyelid ptosis repair are both possible options. If you're considering treatment, it's important that you meet with a board certified plastic surgeon who can help you with this decision.