Donald Trump looks at the solar eclipse credit: AFP

The US president was mocked online for appearing to look directly into the sun - despite warnings it could damage your eyes.

And the New York Daily News splashed the image of the front page under the headline: "Not too bright!"

“I like how everyone thinks Trump will get eye damage from staring into the eclipse when staring directly at Steve Bannon for 2 years did nothing,” joked one.

How Twitter reacted