I would never take a bow shot with a deer (especially a whitetail)looking at me. Too much can go wrong.
I always "play the eyes".....if I can see a deers eyes, they can see me.
I'm not afraid of missing opportunities, I don't try and estimate how much a spooked deer will drop....again, too much can go wrong.
Bowhunting is the most rewarding sport I have ever participated in. Wounding a deer, especially because I was "pushing it" ruins a perfect sport.
My opinion, your mileage may vary.