Eclipse-watchers: looking at 99.9% totality is unsafe!

jsomae@lemmy.ml to News@lemmy.world – 138 points –
Total solar eclipse of April 8, 2024
web.archive.org

Safety tips:

  • Only use special eclipse glasses; regular sunglasses aren't safe
  • Wait for 100% totality before taking off your eclipse glasses. (If you don't have eclipse glasses, wait for totality before looking at all)
  • Have a timer prepared on your phone set to the duration of the eclipse at your location, so you know when to put your glasses back on.
  • When the sun is mostly (but not fully) eclipsed, it will likely not feel painful to look at it, but it will still damage your eyes permanently.
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Also, as the end of the eclipse approaches, keep one eye closed just in case.

I like this advice. One bad eye vs 2 bad eyes is more than 50% better.

Be careful when giving this advice out. It's easy to imagine someone hearing this and then watching the partial eclipse with one eye open, feeling impervious.

You were the one making that suggestion in the first place. lol

Yeah, I wasn't sure whether or not to suggest it.

Well I'm not blind in both eyes thanks to random internet people. It's a win

Yay! (Sorry to hear about your other eye!)

I got flashed by the end of the totality and all I got was a small crescent in my vision for a minute.

As long as you're not staring at it, it really isn't that big of a deal. The unpleasantness will make you flinch when it's time to stop looking.