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This Is What Will Happen To Your Eyes If You Watch The Eclipse Without The Right Protective Equipment

Posted by on August 21, 2017 in Hazards, Issues & Diseases, Health with 0 Comments

By Alfredo Carpineti | IFL Science

So. You want to watch the eclipse on Monday and you think that you don’t need any of those “safety” eclipse glasses. That's a fantastic way to cause permanent damage to your eyes.

Unless the Sun is completely covered by the Moon, you really shouldn't look at it directly. Even a tiny sliver of our star is bright enough to hurt you. Sunlight triggers chemical reactions in the back of your eyes, which is what allows you to see. But if you are exposed to too much light, those chemical reactions are pushed to the limit and the retina gets a chemical burn. This is called solar retinopathy.

Knowing that you’re literally burning your retinas might already be enough to discourage you looking directly at the Sun, but let’s make it perfectly clear what the consequences are: Your eyes may become extremely sore, you might be unable to see shapes and details of objects, and these may appear a funny color. Your vision may be distorted and you could develop blind spots.

The effects of solar retinopathy on the eye. This person won't be seeing well for a while. SUE FORD/SCIENCE PHOTO LIBRARY

If you have mild damage, these impairments to your vision might last for a month or up to slightly over a year. If the damage is more severe, those symptoms become permanent. So please be safe and follow the guidelines to enjoy the eclipse safely. Buy good solar glasses because they can filter all but 0.003 percent of visible light as well as ultraviolet and infrared light.

Another important warning is to use filters for cameras, binoculars, or telescopes to see the eclipse. These instruments can significantly magnify the light we get from the Sun and you need to stop a lot more solar radiation to be safe. And no, solar glasses cannot be used with those. They are not good enough to protect against magnified light, so use the appropriate equipment.


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