This kind of eyeshade is also a promotional item in the game Team Fortress 2, appearing in that game and also in Poker Night at the Inventory, carried always by the same character.

The phrase 'green eyeshades' can be used as a synecdoche for individuals who are excessively concerned with financial matters or small and insignificant details. The Society of Professional Journalists annually recognizes deserving journalists working in the Southern United States with its Green Eyeshade Excellence in Journalism Award. Several individuals, including William Mahony, received patents for their eyeshade designs. They retain some popularity in the gambling community. One manufacturer, the Featherweight Eyeshade Company, described their eyeshade as 'healthful, color peculiarly restful to the eyes'. This allows them to better see the cards and chips on the table and to accurately conduct the game. Green eyeshades were often made of a transparent dark green- or blue-green-colored celluloid, although leather and paper were used to make the visor portion, as well. Casino dealers traditionally wear green visors to reduce glare and eye strain from the bright lights in the casino. Because they were often worn by people involved in accounting, auditing, economics, and budgeting, they became associated with these activities. Green eyeshades or dealer's visors are a type of visor that were worn most often from the late 19th century to the mid-20th century by accountants, telegraphers, copy editors, and others engaged in vision-intensive, detail-oriented occupations to lessen eye strain due to early incandescent lights and candles, which tended to be harsh (the classic banker's lamp had a green shade for similar reasons).

Why do people use casino visors