When you look at the picture below, do you see straight or curved lines? That's the debate triggered by the viral optical illusion that's now raging on social media. The image is an eight-by-eight ...

Peripheral vision enables humans to see shapes that aren’t directly in our line of sight, albeit with less detail. This ability expands our field of vision and can be helpful in many situations, such ...

Whether you’re driving a car or walking into a room, your peripheral vision helps you move around safely. It lets you see things without moving your head. But some conditions can interfere with ...

Tunnel vision refers to the loss of side vision. With tunnel vision, a person can only see what is directly in front of them. As such, their vision may appear as if they were peering down a narrow ...