Monsters holding spyglasses will see the player from a longer distance

If monsters like skeletons and zombies hold a spyglass they should constantly hold it to their eye until they spot a target to attack and should be able to look farther. Baby zombies will also be able to go after and ride animals that are farther than normal. I think its obvious for monsters to be able to use the spyglass to their advantage and they could also sometimes accidentally use it backwards minimizing their range of sight.