If you see anything it would mean that the photon had been entangled with your retina, your visual nerve and your brain. All those being macroscopic objects, y

If you see anything it would mean that the photon had been entangled with your retina, your visual nerve and your brain. All those being macroscopic objects, you could not see any quantum behavior. I'm not sure what would you expect to see anyway. A photon in two places at once? That's not how it works. The wave function tells you where a particle can be detected, and that can be in several places, but in the end it is only actually detected in only one of those places.