Fig. 2.

Globe translation during large horizontal eye rotations in 38 orbits of 19 normal adult volunteers. The globe translates an average of 0.77 mm laterally in abduction but 0.14 mm medially in adduction. Lateral translation in abduction was much more than the predicted in gray symbols by the Orbit 1.8 model, but translation in adduction was not significantly different. Globe retraction of about 0.4 mm in abduction was not significantly greater than predicted by Orbit 1.8, but the 0.14 mm mean anterior translation in adduction was significantly greater than the Orbit 1.8 prediction. SEM -standard error of the mean.