We’ve been looking at the wrong part of the eye. New research shows the earliest signs of Alzheimer's are hidden at the very edges of the retina.

Learn about causes of gradual and sudden-onset blurred vision, from eyestrain and refractive errors to cataracts and strokes, ...

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 ...

Most of us have at some point felt the sensation that someone is staring at us in our peripheral vision. A quick glance is all it takes to confirm or deny this sensation. Sometimes there really is a ...

Winter roads can look calm and cinematic under a blanket of fog, but that stillness hides a serious risk. Fog doesn’t just reduce how far you can see straight ahead; it quietly interferes with ...