Did my upper blepharoplasty cause my extreme dry eyees, meibomian gland dysfunction and slow blink rate?

Directly after my belpharoplasty operation I was diagnosed with extreme dry eyes, meibomian gland dysfunction, and a slow blink rate. I still have all three issues and it has been 1.5 years. My eyes had been in excellent health prior to the operation without any issues at all. What could have caused these issues to occur? Thank you.