Optic nerve measurement (IMAGE) American Roentgen Ray Society Caption Measurements complete by medical student under supervision of two pediatric neuroradiologists with more than 8 years of reading experience Credit ARRS Usage Restrictions ARRS License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.