How do I know if my solar eclipse glasses are safe?

On April 8, 2024, the inhabitants of central northern Mexico will have the opportunity to witness a total eclipse of Sol. However, with the excitement of the event, a crucial concern arises: Are the glasses you will be using to view the eclipse safe?

In ancient times, native peoples believed that solar eclipses were caused by supernatural or mystical phenomena. Now we know that the Sol It follows its normal course during an eclipse, emitting intense ultraviolet rays that can be harmful to the eyes if looked directly at.

That is why it is essential to use suitable protective glasses to see a eclipse solar. In this regard, the American Astronomical Society (United States) has issued a specific warning once morest purchasing eclipse glasses at too low prices on online markets.

“For your safety, make sure your lenses are CE and ISO 12312-2.2015(E) certified!”

— Article “How to observe a solar eclipse safely?”, from the National Autonomous University of Mexico

The reason for this warning lies in the invasion of counterfeit products in retail supply chains. Supply chain management experts have seen a worrying increase in the presence of these fake productsespecially on online platforms.

“What difference does it make? Why not save a fortune on something that may only be used once for a few minutes? There’s good reason: Deceptive counterfeit products have infiltrated retail supply chains. And some of them can pose a threat to your health.“, explained Yao “Henry” Jin, associate professor of Supply Chain Management at the University of Miami and Simone Peinkofer, associate professor of Supply Chain Management at Michigan State University, on the site “The Conversation”.

Which eclipse glasses are safe?

To avoid falling into the trap of counterfeit products, specialists recommend purchasing eclipse glasses directly from brands and manufacturers approved by the American Astronomical Society. In case you need to buy online, it is crucial to verify the authenticity of the manufacturer and look for evidence of authorization.

“Ultimately, eye safety is not something to be skimped on. It is better to pay a little more for authentic and safe glasses than to risk counterfeit products of unknown origin. When in doubt, it is always advisable to consult with local opticians to verify the UV protection of sun glasses. Remember, eyesight is a priceless treasure that should not be compromised for a few savings,” they concluded.

Things that should not be used to observe the sun, according to the UNAM

• DO NOT use x-rays
• DO NOT wear dark glasses
• DO NOT use dark glass lenses
• DO NOT use tinted glass
• DO NOT use photographic negatives
• DO NOT use compact discs (CD) or floppy disks
• DO NOT use aluminum foil
• DO NOT use water as a projection mirror