In ME I use a shiny detail to reveal the POV of a bulimic woman about her disease; vomiting became the act that define herself, a sort of intimate routine that gives both relief and guilty, the real reason why it's so hard to jump out from it.
I tried to give the external and the subjective point of views at the same time, making you feel the drama, even using colors and light to reveal the way the ill woman identify with.