The country’s top astronomical organization says it’s alarmed by reports that potentially unsafe eclipse glasses are flooding the market in advance of the all-American solar eclipse on Aug. 21 – and in response, it has issued a list of approved manufacturers and vendors.
The flap already has sparked online battles between reviewers on Amazon’s website.
One dissatisfied “Verified Purchase” customer went so far as to post a picture that purportedly shows the glow of a 60-watt light bulb as seen through solar filters that were made in China.
“This would not be sufficient to protect your eyes from the sun,” the reviewer wrote in his one-star assessment. “I would never trust my eyesight to a pair of glasses from China.”