To evaluate whether upper eyelid blepharoplasty causes eyebrow position change in patients with or without brow ptosis.

We analyzed the photographic records of 28 patients 53 eyes with dermatochalasis who had undergone upper eyelid blepharoplasty. Brow-pupil, brow-lid margin, lid margin-pupil, brow-lateral canthus, and brow-medial canthus distances were measured, and then the proportions of medial canthus-nasal alar were taken. Preoperative and postoperative measurements were compared.

After blepharoplasty, no one in the group without brow ptosis developed new brow ptosis. In the group with brow ptosis, only one patient felt a significant change in brow position after blepharoplasty. In both groups, the distance between the eyebrow and the lid margin decreased by similar amounts. There was no change in the upper eyelid margin position after blepharoplasty.

In patients with dermatochalasis, upper eyelid blepharoplasty caused a lowering of the eyebrow without a change in the eyelid margin. It is important to evaluate the brow ptosis preoperatively and excise the correct amount of excess skin to avoid aggravation of brow ptosis.