Definition

The ability to see clearly in bright light, which is controlled by the cone cells in the eye; this is also known as daylight vision.

Example

During the day, our eyes rely on photopia to see colors and details clearly.

Conversation

Have you ever thought about how our eyes work in bright light?

Yeah, I know a bit about it, like how photopia helps us see better during the day.

Exactly! It's pretty fascinating how our vision adjusts.

It really is, especially when you compare it to low-light vision.

Synonyms & Antonyms

Root Explanation

Photopia is formed from "photo-" (from Greek "phōs", meaning light) and "-opia" (from Greek "opsis", meaning sight or vision). The word refers to a condition of good vision in bright light or the ability to see well in light conditions.

Memory Tip

Think of 'photo' meaning light and 'opia' relating to sight — this helps you remember that photopia refers to good vision in bright light.

Visually Confused Words