Is this regular ptosis or blepharitis, and should I wait until after jaw surgery in 2 years to fix it, or get it done now?

My upper left eyelid has begun to droop over the past couple years, leaving my eyes looking asymmetrical, especially with my eyelashes growing forward/downward rather then curling up like my right eye. It's been ever so slightly swollen over the years and gets worse when tired. Also my left eye has been very dry for a while now I'm too undergo jaw surgery in roughly 2 years as the left side of my jaw is larger causing TMJ issues including left sided headaches over the eye and cheek pain.