Visual acuity is a measure of how small a detail that is visible can be, and still be identified by a person. The most common way of testing vision is to use an eye chart, (the kind that you see in an ...

We all know dogs are colorblind—or do we? Many people assume pups see the world in black and white, but that’s actually a myth. While their vision is different from ours, it’s far from colorless. In ...

Overweight dogs have higher eye pressure than lean dogs, potentially increasing their risk of glaucoma and other vision problems.

If you are a human being, then your dominant sense is vision. That means that a person relies more upon visual inputs than any other form of sensory stimulation, and a larger portion of our brain is ...