Can Dogs See in the Dark?

Can Dogs See in the Dark?

Can dogs see in the dark?

Pupils, Rods and the Tapetum Lucidum.

These three impressive sight modifications give dogs the advantage over humans when the lights go out. 

Ever gotten lost in the deep, soulful pools of your puppy dog’s eyes? 

The irresistible cuteness is attributed to larger than average pupils.  This allows more light to enter the dog’s eye for better vision in all light conditions. 

There are two types of cells within the body that are specialized for vision.  These are rods and cones

Rods are specialized for light and cones are specialized for colour differentiation. 

A dog’s eye has a greater number of rod cells which improves their interpretation of images in low light conditions.  To compensate, they have fewer cone cells and thus only see shades of grey from the colour spectrum.

The final advantage that allows dogs to see in the dark comes from the Tapetum Lucidum.  This structure lies at the back of the eye and is not found in humans. 

The Tapetum Lucidum functions like a mirror, reflecting additional light onto the lens of the dog’s eye for further improved vision.

All these elements come together for the purpose of allowing more light to enter the dog’s eye in all light conditions, making dogs better equipped to see in the dark.