Question

why should we not look at the sun directly during solar eclipse

Answer 1

Here is your answer

We should not look a lunar eclipse directly because the eclipse send ultraviolet radiation which can effect our eyes

Answer 2

According to experts, viewing the sun with your naked eye during the eclipse can burn your retina, damaging the images your brain can view. This phenomenon, known as “eclipse blindness,” can cause temporary or permanent vision impairment, and in worst-case scenarios can lead to legal blindness, which entails significant loss of vision.