[en] There is a dose-dependent reduction in eye volume in beagles irradiated with doses of 105 to 355 rads at 28 or 55 days postcoitus (dpc) or 2 days postpartum (dpp). This report presents analyses of the data from Segment III animals killed at 5 and 8 years of age after receiving approximately 83 rads at various developmental ages. Factors having an effect on the eye volume are age-at-sacrifice, sex, femur length (as a measure of body size) and age-at-exposure. There was a significant reduction in eye volume for dogs exposed in the 83 rad dose group at 28 or 55 dpc or 2 dpp