Question

Why do cat's eyes glow in the dark?

• A. Cat's cornea reflects all the light falling on it and allow very less amount of light to go inside.
• B. The retina of cat's eye has a layer just behind it that reflects the light falling and so they appear to be glowing.
• C. Cat's have a pigment on their cornea, that shines when illuminated by light.
• D. Cat's eyes are covered with an additional reflective layer.

Answer 1

The correct option is B

The retina of cat's eye has a layer just behind it that reflects the light falling and so they appear to be glowing.

Cat's retina has a layer just behind it named Tapetum lucidum that reflects light which their retina didn't catch. Due to this reflection, their eyes glow and they have a better night vision also.