Such symptoms can be due to advancing age (most likely in your case), fluid retention, alcohol and tobacco use, allergies, ononucleosis, thyroid disease, kidney disease and periorbital cellulitis. For this you require, Botox (botulinum toxin) ,non invasive or carbon dioxide laser or a surgical eyebrow lift.
You can consult your dermatologist and decide the best treatment for you. It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.