Visual perception is the ability to interpret the surrounding environment by processing information that is contained in visible light. The resulting perception is also known as eyesight, sight, or vision (adjectival form: visual, optical, or ocular). The various physiological components involved in vision are referred to collectively as the visual system, and are the focus of much research in psychology, cognitive science, neuroscience, and molecular biology.

The visual system in humans and animals allows individuals to assimilate information from the environment. The act of seeing starts when the lens of the eye focuses an image of its surroundings onto a light-sensitive membrane in the back of the eye, called the retina. The retina is actually part of the brain that is isolated to serve as a transducer for the conversion of patterns of light into neuronal signals. The lens of the eye focuses light on the photoreceptive cells of the retina, which detect the photons of light and respond by producing neural impulses. These signals are processed in a hierarchical fashion by different parts of the brain, from the retina upstream to central ganglia in the brain.

John Christopher "Johnny" Depp II (born June 9, 1963) is an American actor, producer and musician. He has won the Golden Globe Award and Screen Actors Guild award for Best Actor. Depp rose to prominence on the 1980s television series 21 Jump Street, becoming a teen idol. Dissatisfied with that status, Depp turned to film for more challenging roles; he played the title character of Edward Scissorhands (1990) and later found box office success in films such as Sleepy Hollow (1999), Charlie and the Chocolate Factory (2005), Rango (2011) and the Pirates of the Caribbean film series (2003–present). He has collaborated with director and friend Tim Burton in eight films, most recently with Dark Shadows (2012).

Depp has gained acclaim for his portrayals of people such as Ed Wood, in Ed Wood, Joseph D. Pistone in Donnie Brasco, Hunter S. Thompson in Fear and Loathing in Las Vegas, George Jung in Blow, and the bank robber John Dillinger in Michael Mann's Public Enemies. Films featuring Depp have grossed over $3.1 billion at the United States box office and over $7.6 billion worldwide. He has been nominated for top awards many times, winning the Best Actor Awards from the Golden Globes for Sweeney Todd: The Demon Barber of Fleet Street and from the Screen Actors Guild for Pirates of the Caribbean: The Curse of the Black Pearl. He also has garnered a sex symbol status in American cinema, being twice named as the "Sexiest Man Alive" by People magazine in 2003 and 2009. He has been listed in the 2012 Guinness Book of World Records as the highest paid actor, with $75 million.

Dana White (born July 28, 1969) is the current President of the Ultimate Fighting Championship (UFC), a mixed martial arts organization based in the United States.

Born in Manchester, Connecticut on July 28, 1969, White grew up in Las Vegas, Nevada, Ware, Massachusetts and Levant, Maine. White is a passionate Boston Red Sox fan. During his youth, he bounced back and forth between Boston and Maine. He attended the University of Massachusetts Boston but did not finish; however, while there he did launch a boxing program for inner-city youth.

White has a background as an aerobics instructor. In 1992, White established Dana White Enterprises in Las Vegas. He conducted aerobics classes at three gyms in the Las Vegas area and began managing MMA fighters Tito Ortiz and Chuck Liddell.

While working as a manager, White learned that Semaphore Entertainment Group, the parent company of the UFC, was looking for a buyer for the UFC. White contacted childhood friend Lorenzo Fertitta, an executive at Station Casinos, and a former commissioner of the Nevada State Athletic Commission. Within a month, Lorenzo and his older brother Frank bought the UFC, with White installed as its president. White currently owns about 9% of Zuffa, LLC, the entity the Fertitta brothers created to own and manage the UFC.