Do Wights Have Blue Eyes?

Wights are easily identified by their eyes having turned bright blue like two blue stars, regardless of the eye color they had while being alive. When they are destroyed, the blue disappears from their eyes. Unlike the Others, they are slow and clumsy.

Do all White Walkers have blue eyes?

The big physical difference is that no matter what color eyes the person had while they were living, all wights have glowing blue eyes to match the White Walkers'. The only way to destroy a wight is to burn it or stab it with dragonglass, which is why Wildlings burn their dead.

What's the difference between wights and White Walkers?

"Wight" is a catch-all term for the reanimated corpses of humans. White Walkers have the ability to turn dead and decomposed bodies into wights. Think of the term as a synonym for zombies. Once brought back as a wight, the former humans are intent upon killing under direction from the White Walkers.