While you can't test glasses yourself to see if the solar filters are up to that standard, you can test to see if the glasses are definitely unsafe.
"Everywhere is sold out", said Melanie Lotspeich of Omaha.
As the day of the eclipse draws closer, trying to find certified viewing glasses is getting more and more hard. Amazon is issuing refunds to affected customers. Customers whose glasses were included in the recall received an email from awesome saying the supplier can't confirm if the glasses came from a recommended manufacturer and urging buyers to not use the glasses.
Eye Dr. Lance Kugler of Kugler Vision recommends that, too. "Even for a few seconds, even when it's completely blacked out".
Simpson thought they were safe to wear during next week's total solar eclipse because the order title stated the glasses were ISO certified. "So if patients were to use these counterfeit glasses and end up with eye damage that could permanently blind them for the rest of their life", Stepien said. Once the sun reappears, glasses should be replaced. Read and follow any instructions packaged with or printed on the glasses.
"If you don't have eclipse glasses that are safe, then we encourage you to sit in our community rooms and watch our NASA feeds", Raleigh said. You can choose not go that route.
At least three schools and dozens of teachers in Louisville are scrambling to find glasses for students to view next week's solar eclipse after purchasing glasses from Amazon that have been recalled for safety reasons.