Poker dealers wear green visors to protect their eyes from the harsh overhead lighting and constant glare from the bright lights that illuminate the tables. We’ve been asked why poker dealers don green visors during game sessions, and the answer’s simple. Most players have no idea why poker dealers wear these visors and are too polite to ask. If you’ve come into contact with a poker dealer at an online Live Dealer casino, you will know that they are slick professionals that always keep a cool head.