Table 1

OAR	Minimal Dose (cGy)	Maximal dose (cGy)
Optic chiasm	192	648
Right optic tract	1050	2232
Left optic tract	144	216
Brainstem	24	384
Right eye	168	2256
Left eye	0	168
Right crystalline	288	552
Left crystalline	24	120

Table 1: Dose volume parameters of each organ at risk (OAR).