The Importance of Approved Glasses for Solar Eclipses
The total solar eclipse on August 12 will mark a historic event for Spain, being the first total eclipse visible on the mainland since 1912. While many Spaniards may have witnessed partial eclipses, an unfortunate number have relied on unsafe methods, like using x-ray films, to observe solar events. Misconceptions about the protective capabilities of such materials have led to eye injuries, emphasizing the need for properly approved eclipse glasses.
Understanding What Approved Glasses Are
Today, the importance of using glasses specifically approved for eclipse viewing cannot be overstated. Only glasses that meet certain safety standards can protect your eyes from permanent damage when looking directly at the sun. These glasses must feature the inscription EN ISO 12312-2:2015. Furthermore, in the European Union, they should also bear the CE marking, indicating compliance with safety regulations. Always check that the package includes the manufacturer’s name, safe usage instructions, and care guidelines.
Inspect Your Glasses for Damage
Even if your glasses are approved, they can still pose risks if they’re damaged. A scratched or misaligned filter can allow harmful sunlight to pass through. It’s essential to carefully inspect your glasses for scratches, loose parts, or discrepancies in filter light transmission. If you see any signs of wear or damage, it’s wise to replace them with a new pair.
Where to Buy Safe Eclipse Glasses
Purchasing from Reliable Sources
While the source of your eclipse glasses may seem less critical, it’s still essential to buy from reputable outlets. Consider purchasing glasses from planetariums, astronomical societies, or scientific retailers, as they are more likely to offer reliable products that conform to safety standards.
Why Sunglasses Aren’t Enough
Sunglasses may seem like a convenient alternative, but they do not provide sufficient protection against the intense solar radiation experienced during an eclipse. Sunglasses are designed to filter out scattered light, but they don’t block a significant portion of harmful UV rays. This gap in protection can lead to greater eye damage, especially since people tend to keep their eyes open longer during an eclipse due to the diminished brightness.
Safety First: The 1% Rule
Even when 99% of the sun is obscured by the moon, the remaining visible light can still be dangerously intense. Just 1% of direct sunlight can cause severe retinal damage. During an eclipse, our instinctual tendency to blink or squint may diminish, leading to prolonged exposure to harmful rays. This risk underlines the importance of using approved glasses at all times when viewing an eclipse.
Conclusion: Enjoy the Eclipse Safely
To ensure a safe and enjoyable experience during the upcoming solar eclipse, it is crucial to adhere to these guidelines in finding approved glasses. By confirming compliance with safety standards, checking for damage, purchasing from trusted sources, and opting for eclipse-specific eyewear rather than sunglasses, you can protect your vision while enjoying one of nature’s most spectacular events.
Image | Astroclubkosova
In Xataka | A third of Spain will be completely dark for a minute or two. The astronomical event of the century is approaching.