I am reading about partial solar eclipses, and my book has this warning:

CAUTION:Looking directly at even a tiny sliver of the sun during a solar eclipse can damage your eyesight permanently.

Why do they give this warning specifically for eclipses? Is the sun more harmful to look at during an eclipse than during a normal day?

Most people are aware of the danger of looking directly at the sun. However, some think that this danger is lessened or reduced greatly during an eclipse. I think this is why the warning is needed.

I hope this helps. Thanks for asking.

Thanks PsyDAG