naked eye

Idioms  

1. Sight unassisted by an instrument such as a microscope or telescope. For example, These insects are too small to be seen with the naked eye. This expression was first recorded in 1664.

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Example Sentences

See Examples For:

naked eye

"In the few days we've been here, it's become clear that you can see the effects of climate change with the naked eye."

From Barron's ● Aug. 27, 2026

Both Bothwell and Clough stressed that you must avoid looking directly at the Sun with the naked eye even when it is mostly blocked, as this can cause permanent damage.

From BBC ● Aug. 12, 2026

Though not immediately visible to the naked eye, the ranch features a number of infrastructural updates, including automated irrigation and a fire suppression system that runs off an 18,000-gallon tank buried underground.

From MarketWatch ● Aug. 12, 2026

Some telltale signs have grown all too familiar even to the naked eye, said Dan Roth, LinkedIn’s editor in chief and vice president of content.

From The Wall Street Journal ● Aug. 6, 2026

“That’s not a challenge. Those old video systems emit faint ion beams. Invisible to the naked eye, of course, but not with your iris-cam...”

From "Artemis Fowl" by Eoin Colfer