Human eye The upper end of the range is given in terms of normal visual performance as 10 cd/m (100,000,000 or one hundred million candelas per square meter). The eye includes a lens similar to lenses found in optical instruments such as cameras and the same physics principles can be applied. The pupil of the human eye is its aperture; the iris is the diaphragm that serves as the aperture stop. Refraction in the cornea causes the effective aperture (the entrance pupil) to differ slightly from the physical pupil diameter. The entrance pupil is typically about 4 mm in diameter, although it
She Has a Name six years. The drama centers on Jason's infiltration of a brothel ring that is trafficking girls into Bangkok. Jason comes to believe that Number 18 could be a key witness to a human trafficking incident and tries to gain her trust and persuade her to testify against the ring. The victimized child in the play is known only by the number 18 to reflect how traffickers often dehumanize their victims by giving them a new name or simply a number, which in some cases is branded onto the victim's body. Waldschmidt said he hoped that "She Has a Name" will