Can you reuse eclipse glasses in 2024 for the next eclipse?

Staff Photo
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Staff Photo

Many viewers have questioned if eclipse glasses used for Monday’s solar eclipse could be used again when the next solar eclipse rolls around 2024.

RELATED: Photos of the 2017 Solar Eclipse in the Miami Valley

If your eclipse glasses or viewers are compliant with the ISO 12312-2 safety standard, you may look at the uneclipsed or partially eclipsed sun through them for as long as you wish.

Credit: DaytonDailyNews

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The Miami Valley was expected to only see 90% coverage of the solar eclipse. Here is what 90 percent looked like in the Dayton-metro area.

Credit: DaytonDailyNews

Furthermore, if the filters aren't scratched, punctured, or torn, you may reuse them indefinitely. Some glasses/viewers are printed with warnings stating that you shouldn't look through them for more than 3 minutes at a time and that you should discard them if they are more than 3 years old.

Credit: DaytonDailyNews

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Kate Bartley after the eclipse in Tennessee

Credit: DaytonDailyNews

Such warnings are outdated and do not apply to eclipse viewers compliant with the ISO 12312-2 standard adopted in 2015. To make sure your eclipse glasses/viewers are from a supplier of ISO-compliant products, see the American Astronomical Society (AAS) Reputable Vendors of Solar Filters & Viewers page.