The clear plastic is a drape between the sterile surgical field and the anesthesia crew. For C-section it's clear in case mom is under regional anesthesia ( spinal or epidural) and not fully asleep and wants to see the baby.
Most times the drape is blue or rarely green and not clear
After reading the post I think you mean, it seems to be fair to think that.
So now out of genuine curiosity, why the plastic?
The clear plastic is a drape between the sterile surgical field and the anesthesia crew. For C-section it's clear in case mom is under regional anesthesia ( spinal or epidural) and not fully asleep and wants to see the baby. Most times the drape is blue or rarely green and not clear