Good Question: Will my eclipse glasses last?

Belen Jesuit Preparatory School students look through solar glasses as they watch the eclipse, Monday, Aug. 21, 2017, in Miami. (AP Photo/Alan Diaz)

(KUTV) The eclipse was so cool that it has some counting down until the next one - like Clark Planetarium Director Seth Jarvis

"In April of 2024, there will be a total eclipse coming up from Mexico and through Texas, up through the north eastern states," he said.

But if traveling east isn't for you, hold your breath. A major solar eclipse will black out most of Utah in less than 28 years.

It's a fact that prompted 2News Viewer Tazya to wonder: will the solar glasses she bought last week last until then?

Jarvis says scientists at the planetarium “think so,” provided the flimsy cardboard frames are cared for.

"We haven't found anybody who can tell us, chemically, what would go wrong with the [lens] filters," Jarvis said.

Some solar glasses sole this year came with warnings that they shouldn't be used after three years. But NASA questions that warning, writing on its website that the warning is "outdated."

Jarvis says the biggest thing to watch for is scratches or holes in the lenses that might make them unable to block all of the sun's harmful rays.

If in doubt, Jarvis says just pitch them – you don’t want to gamble with your eyes.

"[Solar glasses] are cheap and if you need eclipse glasses again in 2023 or 2024, they're a couple of bucks."

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