Hello Techgirl2011, The photo you have here is a little bleached out and your at an angle but I can see what you are seeing and we can work with this. Here's what I see and what can be done: 1. You right upper eyelid has a crease that is weak, higher than the left, and not as pronounced or deep as the left. The tissue between this right upper lid crease and your eyelash line is giving a full look to the upper lid making your right eye seem smaller. This is very common in my practice and can be dealt with easily with suture technique blepharoplasty, even on just one eye. On the link below, photos 1,2, and 4 are examples of the same issue you have. 2. I think i detect large contacts in your photo. If this is the case I'll say that repeated pulling of one's upper eyelid can create uneven creases sometimes. 3. Early intervention for this sort of issue is more easily done at a younger age. As Asian women age the need to remove skin and to a somewhat larger surgery becomes more common. This is occasionally the case in younger patients as well depending on the anatomy, skin quality, and amount of fat/upper lid fullness you have to deal with. What are the anatomical reasons for this? 1. It's all normal. You may have noticed your crease change, appear, disappear, etc. starting in your teens or early 20's. 2. It's due to a week connection between a muscle called the levator and the under surface of your skin. Not a problem. It's very common. The suture recreates this connection. It's not your imagination. Best of luck Chase Lay, MD