10. Cat Eye Reflective Technology — Nighttime Safety

If you’ve ever seen a cat’s eyes glow at night, you’ve witnessed the tapetum lucidum—a reflective layer behind the retina that bounces light back through the eye.
This inspired the invention of roadside reflectors, commonly known as “cat’s eyes.”
They are used for:
- Highway lane markings
- Bicycle reflectors
- Running gear visibility
- LED safety devices
This simple yet life-saving technology drastically improves nighttime visibility.
