Dr. Brian Williams' entire life changed in the summer of 2016 as a trauma surgeon working in Dallas, Texas. Williams, who has spent his entire life in medicine taking care of people, saw his life take a turn when five Dallas police officers were gunned down that evening on the streets of downtown.

An eye surgeon considers the implications of giving sight to someone who never saw.

Doctors in a coastal town in northwestern Peru have rescued the innards of a 38-year-old man by removing 17 metal objects -- among them nails, a watch clasp and a knife -- that he ate. Luis Zarate was taken to the regional hospital of Trujillo earlier this week by his family after complaining of sharp stomach pains. Doctors took X-rays of his chest that showed his insides littered with screws. "There were 17 strange objects found at the level of his stomach and colon," said Dr. Julio Acevedo, one of the surgeons who operated on Zarate. The black-and-white scans showed Zarate's skeleton interlaced with things like bolts, barbed-wire and pens.