Why should bending be avoided in the first week of upper blepharoplasty?

As a general rule, patients should avoid rigorous exercise after surgery. You should be ready to get back to life as normal in about two weeks.
During those two weeks, you may need to use eye drops to keep your eyes
properly lubricated, and you may need to avoid activities like reading
that will tire your eyes. You should keep your head elevated as much
as possible, including reclining during sleep rather than lying flat.
Vigorous exercise should be avoided since the increased blood pressure
will cause more swelling. Sunglasses should be worn as much as possible
to protect your eyes from wind and sun.

Thank you for your question.Any time there is tissue trauma, all be it, a precise surgical incision, there will be corresponding swelling and bruising.The body's natural reaction is swelling. The integrity of the cells are temporarily compromised and fluid leaks out.Thus, when the injured part is lower than the heart there is a greater degree of "dependent pressure" as when you bend over.Bottom line, keep your head elevated as much as possible, ice and cold compresses, low salt diet and just daily activity for the first several weeks.My best wishes on your speedy recovery. 

Bending over or straining can promote increased bruising and swelling. Thank you for your question. Best wishes.