Losing Eyelashes After Upper Blepharoplasty/Eyelid Surgery?

I had upper Blepharoplasty/Eyelid Surgery about 6 weeks ago and am loosing upper and lower eyelashes. I had very swollen eyes and heavy brusing after the procedure...more so than other photos I have seen of other woman who had the operation. Is this eyelash loss considered a complication? Do eyelashes lost in this way usually grow back? If so, how long does it typically take? Thank you!