Meaning of the word "the naked eye" in English

What does "the naked eye" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

the naked eye

US /ðə ˌneɪ.kɪd ˈaɪ/
UK /ðə ˌneɪ.kɪd ˈaɪ/
"the naked eye" picture

Phrase

the human eye when it is not aided by a microscope, telescope, or other optical instrument

Example:
The planet is visible to the naked eye on a clear night.
Bacteria are too small to be seen with the naked eye.