It kind of is answered, at the end: "Doctors don’t need UV photography for diagnostic purposes. “We are trained to pick up on subtle changes,” said Dr. Rachel

It kind of is answered, at the end: "Doctors don’t need UV photography for diagnostic purposes. “We are trained to pick up on subtle changes,” said Dr. Rachel Nazarian, a dermatologist with offices in Murray Hill. The pictures, she said, are “meant for dramatic effect."