Henry Spencer wrote:


If memory serves, total eclipses are safe for naked-eye viewing *during*
*totality*. But caution has to be exercised during the partial phases
before and after totality.

I'm pretty sure the corona's UV emissions can damage the eye even at
totality; I know my eyes hurt after I looked at a total eclipse for a
minute or two (and anyone who doesn't think that they are also going to
look at it during totality is fooling themselves- if there was a cage
with a tarpaulin over it that said "Warning! Medusa having sex with a
Basilisk! DO NOT LOOK!" around 95% of people would promptly take a peek
under that tarpaulin inside of ten seconds.)

Pat