eli5: Why did eclipse glasses say to only look at eclipse for 3 minutes at most, intermittently over a few hours.

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eli5:

I only saw this warning after I had looked through them for around 3 minutes (give or take a minute maybe, I’m not sure)

Now I’m anxious about whether they were even safe to use or not.

In: Biology

3 Answers

Anonymous 0 Comments

The danger of looking at an eclipse is that the sunlight will burn the back of your eye in seconds, and because the sun is interesting and less bright during an eclipse, your eyes won’t adjust right and you’ll be less likely to squint or look away.

Eclipse glasses are really dark, so only a little light gets through. That increases the time you can look at the sun safely. But some light does get through, including light that you can’t see. Given enough time, there’s still a risk of injury, especially if the glasses are old or worn.

My eyes feel a bit dry and sore a day after the eclipse, probably in part due to a mild sunburn through my glasses.

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