Horse vision vs human vision: what is different?
Sees mostly blues and yellows. Red and green look alike. Sees about 3.2 times less detail than you. Drag the line to see the difference, then try both on your own photo.


A simulation made from published eye studies. Not what the animal feels.
Head to head
- Sees mostly blues and yellows. Red and green look alike.
- Sees about 3.2 times less detail than you.
- Sees almost all the way around. Only a slice behind its head is hidden.
- Sees well in dim light: a mirror layer at the back of its eyes bounces light back.
Play today's Guess the Eye: can you tell whose eyes are whose?
More face-offs: all face-offs. How does the horse see? · How does the human see?
The science behind it: the numbers and studies for the horse