The picture is illustrative of what everyone has, facial asymmetry. In addition there is slight droopiness of the right lid. It is not clear which of these aspects you are inquiring about. With facial asymmetry, one side of the face does not look like the other. It is often most noticeable when the facial skeleton differences make one eye look higher or further from the midline than the other. Your eyelid folds themselves are very even and look like each other. Sometimes surgery is done to make the lid folds look the same on each side, but this is not the case here. The slight droop of the right upper lid over the iris does not necessarily need correcting as it seems to be more related to the lower position of the right bony orbit. If this small detail bothered you, it can be evaluated by a plastic surgeon or oculoplastic surgeon with an interest in ptosis (droopy lid) repair.We all have to learn to live with our imperfections, but it helps to know that facial, body, chest, breast asymmetry are almost universal, if you get in the habit of looking for it.If you ever get a chance to get a Mirror imaging, at a plastic surgeon's office, or with some other software, you can see each side of the face or body, split down the middle and flipped over so the full image is the mirror image of one side put together. It is startling to see how different we are, almost different, unrecognizable people, from side to side.Ptosis can be hereditary, but in the absence of a definite family history with other associated physical changes, it would seem to be of low likelihood.