how to use eclipse glasses if you wear glasses

This damage is often painless, so people don't realize what they're doing to their vision. When they're overstimulated by sunlight, they release a flood of communication chemicals that can damage the retina. The retina is home to the light-sensing cells that make vision possible. This happens when bright light saturates the retina, which is located at the back of the eyeball. According to , So what can happen? Solar retinopathy can happen. Standard sunglasses do a pretty good job with UV radiation but only filters less than 20 percent of visible light. This composition blocks almost all visible light and all of the ultraviolet (UV) radiation. However, it is their composition that truly stands out. According to information published in The Orange County Register, the glasses are made from a black polymer (a resin infused with carbon particles). How dark? Most sources say that they are about 100,000 times darker. Solar eclipse glasses are much darker than standard glasses or sunglasses. You might be wondering, 'what's so special about the eclipse glasses, and how are they different than 3-D movie glasses? They sure look similar to me.' A list of reputable vendors for the glasses can be found at the American Astronomical Society (AAS) website.

NASA has recommended that viewing glasses and other solar viewers meet the ISO 12312-2 certification standard.

How to use eclipse glasses if you wear glasses