Future sunglasses are glasses that some zombies will wear when the code "future" is typed while Plants vs. Zombies is being played. They are worn by regular Zombies, Flag Zombies, Conehead Zombies, Buckethead Zombies, Screen Door Zombies, and Ducky Tube Zombies (all types) while the code is active. They have no effect on gameplay, although if a zombie wearing the glasses bites a Garlic, he will instantly switch lanes, but a zombie without glasses will bite the Garlic, make a face, and then switch lanes. This also applies to Pole Vaulting Zombie and Newspaper Zombie, even though they do not wear future glasses. When the future code is deactivated, they will make a face.
- According to the Tree of Wisdom, the zombies that wear these glasses are from the future.
- In Plants vs. Zombies 2, zombies from the future appear in Far Future, but only the Disco Jetpack Zombie and the Far Future variant of the Treasure Yeti wear glasses in that world.
- On Pool levels on the Nintendo DS version of Plants vs. Zombies, ravens will occasionally drop these sunglasses onto zombies' heads on the top portion of the screen.
- Spikerock in the Chinese version of Plants vs. Zombies 2 wears a pair of future glasses as a costume, but they do not really resemble the ones worn by the zombies.