To display this modal sheet, click the Apex button in the Retinal Diagram window.
Enter the tumor apex height in mm measured radially inward from the inner sclera (usually 1 mm inset from the outer sclera) as determined from ultrasound, CT or MR imaging. You can also enter tumor height in the Standard Tumor dialog.
In the tumor base group, enter and desired PTV expansion margin (e.g. 2 mm) surrounding the tumor base. You may also enter a value for the tumor depth. Tumor depth is the distance measured radially outward from the inner sclera to the geometric center of the base. The depth value should usually be zero. The depth parameter is provided to help model tumors located between the iris and cornea.