LOUISVILLE, Ky. (WDRB) -- The WDRB newsroom has received several calls and emails from concerned teachers and parents across JCPS regarding solar eclipse glasses and whether or not those distributed over the last few weeks are safe to use during Monday's total solar eclipse.

To be clear, the glasses distributed at Heine Brothers locations throughout Louisville and southern Indiana and those given away at the the WDRB booth at the Kentucky State Fair this week are NASA-certified and 100 percent safe for viewing the solar eclipse Monday.

"WDRB conducted a lot of research and the safety of our viewers was priority No. 1," said WDRB News Director Barry Fulmer.

A letter was sent to some JCPS parents, stating that the glasses JCPS received were outdated from 2012. However, glasses with ISO 12312-2 printed on the side, such as the WDRB eclipse glasses, were made in 2015, as stated below on the NASA website:

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. 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. Such warnings are outdated and do not apply to eclipse viewers compliant with the ISO 12312-2 standard adopted in 2015. To make sure you get (or got) your eclipse glasses/viewers from a supplier of ISO-compliant products, see the American Astronomical Society (AAS).

WDRB's eclipse glasses are less than three years old and meet the standard ISO 12312-2. That number is what shows you that your pair of eclipse glasses are certified. Our glasses came from a NASA-approved vendor, American Paper Optics, and were made in 2015. 

"American Paper Optics put out something that is basically a way to tell if their glasses are fraud," WDRB Chief Meteorologist Marc Weinberg said. "One of the things you will look for is the part that goes over your ear. They show the edge as not being rounded, and you can clearly see ours are elongated.

"The second thing they say to look for to verify that they're APO real glasses are on the edge of the shade ... it will have a circular edge rather than a squared-off edge. And you can clearly see our glasses meet both of those standards."

Below is a full explanation from NASA:

Click here for a full list of the NASA-approved solar eclipse glasses vendors.

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