Well, alot of light comes thru those small holes when i drive facing the sun with the visors tilted, should have no holes maybe they wont break as much. any way Ill see when i start using them. Or maybe i wont cuz dont want it to break again.

Holes have nothing to do with the breaking. If it bothers you so much, you could cut a piece of paper or plastic to block the holes on the inside.

It doesnt bother me I use my shades. I think its unique the sunvisors.