In vertebrate retinas, specialized photoreceptors responsible for color vision (cone cells) arrange themselves in patterns ...

Kaleidoscope vision is just one of several types of auras that occur in response to a sudden increase in neuronal activity. They can also affect a person’s sense of smell, touch, and hearing.

Sometimes, a condition can't be helped with medication. Refractive errors, some of the most common types of vision problems, ...

What does a flower look like to a hummingbird? New research says it’s probably nothing like what humans perceive because ...

In this new effort, the researchers looked for such evidence in people over the age of 71 who have experienced at least one ...

Depending on the cause, vision loss may occur suddenly or gradually and in one or both eyes. Some types of vision loss are temporary or reversible. Vision problems are a common disability in ...

What does vision insurance cover? It's important to know before deciding on a policy. Use our guide to learn more and find the right plan. Buying coverage? It helps to know the types of vision ...