Tom Riddle's transformation

Tom Riddle also known as Lord Voldemort, You-Know-Who or He-Who-Must-Not-Be-Named had undergone a physical transformation which left him looking younger than his actual age. However, this transformation made Riddle look scarier than before.

Changes
Some changes include
 * Eyes becoming a dark shade of red
 * Eyes becoming slitted like a snake
 * An un-aging body.