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

Peripheral vision is what you see beyond your direct line of sight. It helps provide a complete sense of your surroundings without moving your head. Jump to Key Takeaways. Within the eye, rods and ...

A person with peripheral vision loss has difficulty seeing things above, below, or at the side without turning their head. This type of vision loss is also known as tunnel vision. Tunnel vision can ...

Glaucoma affects peripheral vision, creating blind spots in the outer edges of a person’s visual field. This can affect daily activities such as driving and walking. Glaucoma is the name for a group ...

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 ...

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 ...

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.

First depiction of glasses in Tommaso da Modena's 1352 painting. Source: Tommaso da Modena Eyeglasses have been around since the 14th century. In the early days, they consisted of two small magnifying ...