Why does eyes turn yellow while on methemphetamines?

Methamphetamines can cause the whites of the eyes to turn yellow due to a condition called jaundice. Jaundice occurs when there is a buildup of bilirubin, a yellow pigment that is produced when red blood cells are broken down. Methamphetamines can damage the liver, which is responsible for processing bilirubin, leading to a buildup of bilirubin in the blood and subsequent yellowing of the eyes.