A camera flash emits a burst of intense light for a fraction of a second while taking a photograph. Sometimes, the flash causes a person to have red eyes or what looks like a white glow.

Camera flash reveals cancer in Arizona boy's eye. KPNX's Vanessa Ruiz reports – Jan 29, 2016 Doting parents can’t stop taking photos of their newborn babies.

Sarah Hedges, a mother of four, discovered her infant son's rare and aggressive eye cancer using the flash on her phone's camera. The story unfolds as Hedges, engrossed in her routine, stumbles ...

A woman in London has claimed that she was able to detect her infant son's rare cancer using the flash on her phone's camera. Sarah Hedges, a support worker from Kent, was in the kitchen cooking ...