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Why do dogs and cats have similar eyes and see well at night?

Updated on September 23rd, 2025

Hi! I'm currently doing research on a dogs eye and I would like to know a few of these stuff: Why is the area centralis the most sensitive part of the dog's retina? Why do cats and dogs have similar eyes?

4 Answers

Most Helpful Answer

Answered By Meredith L. Voyles, DVM, DAVCO

Veterinarian, Board-Certified Veterinary Ophthalmologist

Published on April 3rd, 2017

Hello! What a fun research project!
The area centralis is the portion of the retina that has a very high concentration of photoreceptors for increased resolution and high visual acuity. It is similar to the fovea in humans.
Dogs and cats have similar retinal anatomy. They have a higher concentration of "rods" as compared to "cones". Rods allow subtle detection in light changes and improved vision in low light. This is why dogs and cats can see much better in the dark as compared to their humans! Since both dogs and cats were once considered predators, they needed improved dim light vision to catch their prey.
I hope this helps! I'm happy to provide a consult if you need more detailed information.

1Pet Parents found this answer helpful

Related Answers from Veterinarians

Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS
Veterinarian
The area centralis of the retina is a small region of the retina strongly specialized for high resolution, binocular vision. The region is typically located near the centre of the retina.
The similar eye conformation reflects their evolution in terms of survival; feeding behaviour (both of them are hunters) is an example of that.
0Pet Parents found this answer helpful
Answered By Jennifer Summerfield, DVM CPDT-KA
Veterinarian, Certified Dog Trainer
Published on March 29th, 2017
Yes, both dogs and cats see better in the dark than we do. They have larger pupils, and more light-sensitive cells called rods in the retina (the back part of the eye), which allows them to make better use of limited light in dark environments :)
2Pet Parents found this answer helpful
Answered By Jeffrey Milner
Veterinarian
Published on April 4th, 2018
Cats have excellent night vision. Better than dogs. They have a part of their eye, called the tapetum lucidum (the bright part that we can see in the dark) that allows them to see much better than humans can for instance. Cats also have other physical features of their eyes that give them really great vision in general. He can see just fine and will probably be sleeping anyway awaiting your arrival home. That's what cats do best. Hope this answers your question.
1Pet Parents found this answer helpful

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