Homonym: cat's eye (Gemstone)
A "cat's eye" refers to a unique optical phenomenon found in certain gemstones, particularly in chrysoberyl. This effect creates a narrow band of light that resembles a cat's slit pupil, giving the stone a striking appearance. The phenomenon occurs due to the presence of needle-like inclusions within the gem, which reflect light in a specific way.
In addition to gemstones, "cat's eye" can also refer to a type of road safety feature. These are reflective markers placed on roads to enhance visibility at night or in poor weather conditions. They help guide drivers by reflecting headlights, improving safety on the roads.