In this dialog you can manually adjust the 3D model to precise ocular dimensions. To create a COMS standard eye, set the AP axis and then click the Std model button. The bumper controls adjust individual parameters of the model in more specific ways. Experiment with the controls to learn about how they work. Alternatively, if a calibrated CT image has been loaded into the Image window, the eye model can be superimposed on the image and adjusted interactively. A sample, calibrated CT test image is provided with the program.