Why do professional poker players wear sunglasses?

[Pilot Station]

Why professionals wear sunglasses to hide the light apart??I would like to know the pros and cons of wearing sunglasses,

[Pilottown]

is to avoid giving clues to the opponent / s, so hide your eyes that ne most cases when you do not know how to play your cards even try to hide, often in sight gives you away, raising his eyebrows, archaea, close your eyes etc., movements and actions that

[Pima]

They may just wear the sunglasses for the looks. The pros of the sunglasses are that they can help your eyes from the uv rays of the sun lights. They could protect your eyes to some degree. In addition, they will make you look cool and special. However, the cons of wearing the sunglasses are that your eye vision may be prevented to some degree when you are indoors. You'd better not wear the sunglasses inside the room which block your eye sight.