The authors aimed to determine the normal range of optic canal diameters in a Turkish pediatric population. They evaluated 200 CT examinations: 102 females, 98 males with mean age of 86.42 ±65.39 months (range 1-211). There was no significant difference for transverse versus craniocaudal optic canal diameters or gender. They report mean values and confidence intervals for the transverse-craniocaudal diameters of right and left optic canals. Craniocaudal diameters of both sides were significantly associated with age groups, but no significant correlation was found for optic canal diameters per age or between right versus left optic canals. The authors conclude these results will be useful in future analysis using paediatric radiology by providing a set of normative data.