IS 100 UV protection enough?

IS 100 UV protection enough?

Inexpensive mass-produced sunglasses made from celluloid were first produced by Sam Foster in 1929. Foster found a ready market on the beaches of Atlantic City, NJ where he began selling sunglasses under the name Foster Grant from a Woolworth on the Boardwalk. Concurrently, sunglasses started to be used as aids for pilots and also produced…