This is a great question.The upper eyelid is really everything between the eyebrow and the eyelashes. So, how the upper eyelid looks depends in part on where the eyebrow is located. In what is considered the "ideal" eyebrow, the outer end of the eyebrow is up above the rim of bone at that part of the eye. If the eyebrow is at or below the rim of bone there, it is considered low (in women).A person who has low eyebrows often unknowingly wrinkles the forehead, trying to elevate the eyebrow, because when the eyebrow is low more upper eyelid skin hangs down toward or over the eye. Elevating the eyebrow by wrinkling the forehead lifts the eyelid skin off of the eye and allows more light to enter the eye.In a similar manner, removing the upper eyelid skin surgically allows more light to enter the eye. The effect of this is that the person stops using the forehead muscles to lift the eyebrows. When the forehead relaxes the eyebrows may drop a bit. The net effect of this sometimes is that after the blepharoplasty, the eyebrow descends and it almost looks like a blepharoplasty was not performed.If you're still with me and understand all of this, great! When I evaluate someone for upper blepharoplasty surgery I look at the entire picture. If someone has a lot of forehead wrinkles, that's one indication the eyebrows may actually be a bit low. It's important to try to evaluate the eyebrow position with the forehead at rest, with few wrinkles in the forehead. Some people will benefit most from undergoing upper blepharoplasty AND browlift surgery. Sometimes just a browlift will do, and sometimes just upper blepharoplasty will do. Visit with a surgeon who does a lot of upper eyelid surgery. Photographs are helpful, but they don't tell the whole story. These types of procedures may have a dramatic effect and enhance the appearance of this part of the face, but the exact procedure that may work best can really only be determined by an in-person consultation.