Áo dài at the University of Texas at Austin. The difficulties of working while wearing an ao dai link the dress to frailty and innocence, she wrote. Vietnamese writers who favor the use of the ao dai as a school uniform cite the inconvenience of wearing it as an advantage, a way of teaching students feminine behavior such as modesty, caution, and a refined manner. The ao dai is featured in an array of Vietnam-themed or related movies. In "Good Morning, Vietnam" (1987), Robin Williams's character is wowed by ao dai-clad women when he first arrives in Saigon. The 1992 films "Indochine"
The dress first large-scale scientific study on the dress was published in "Current Biology" three months after the image went viral. The study, which involved 1,400 respondents, found that 57% saw the dress as blue and black; 30% saw it as white and gold; 11% saw it as blue and brown; and 10% could switch between any of the colour combinations. A small number saw it as blue and gold. Women and older people disproportionately saw the dress as white and gold. The researchers further found that if the dress was shown in artificial yellow-coloured lighting almost all respondents saw the dress