The reason for your cat's eyes glowing in photographs technically has to do with the structure and science behind their eyes.
Cats have the ability to see in dim lighting, as their night vision only requires one-sixth of the light humans require to see. Eyeshine is the technical term used to describe the glow that appears when you look at a cat's eyes in photographs or when a bright light is flashed in their direction in dim lighting. And cats are not the only animals whose eyes can glow like this. Dogs, big cats, cattle, and even deer can also have eyes that glow. Although there's a science behind it, sometimes these "vampire eyes" can look a bit creepy at times.
As we see it.