sunglasses uv rating

Is 400 uv rating on sunglasses enough protection?

Any uv rating is ok
your brain will tell you when you have had enough, and it does it automatically.
and, by the way, do not look at the sun

Beat the heat
It’s always quality time when a mother and daughter can have fun blowing bubbles together on a picnic in the park. The smell of the barbecue grill, the sounds of children playing and the feel of warm sun on the skin are all signs of summer.