Blood shot eyes can be a sign of drug abuse. The blood vessels on the surface of the eye dilate in response to the use of certain drugs, making the eyes appear red.
Review Date: 10/23/2007
Reviewed By: Daniel Rauch, MD, FAAP, Director, Pediatric Hospitalist Program, Associate Professor of Pediatrics, NYU School of Medicine, New York, NY. Review provided by VeriMed Healthcare Network.