20 episodes. In this hidden camera game show, contestants are asked trivia questions for a chance to win money, but aren't told they're on a game show until after they've answered the questions. Jessica Custodio, Regan Burns, Jeff Henry | See full cast & crew Â».
Unfortunately color blindness can be caused by severe head injuries. By far the most occurences of color blindness are congenital. In very rare cases people with perfect color vision abilities can be affected by an impaired vision or color vision deficiency after a brain trauma, a stroke or some other kind of severe head injury. Such vision deficiencies are caused by a damage of the optical cortex.
The term color blindness is too vague to be useful. There are 7 types of color deficiency due to cone abnormalities. In addition, the elderly see colors differently, but are not color blind in the usual sense of the term. Finally, brain damage can create a very rare condition called achromatopsia. People with normal color vision are called trichromats because they require three primaries to match any arbitrary sample.