Table 2. Disease characteristics and radiation dose to the retina of irradiated subjects.

					OD			OS
No.	Disease Site	Histology	Stage	Prescription Dose†	Mean Dose (Gy)*	Max Dose (Gy)*	% of retina receiving > 45 Gy	Mean Dose*	Max Dose*	% of retina recei ving > 45 Gy
1	L ethmoid sinus	Adenocarci noma	T4aN0M0	62.4 Gy/1.2 Gy BID	18.4	44.1	0	29.9	54.8	19.5
2	R maxillary sinus	Adenoid cystic carcinoma	T4bN0M0	62 Gy/2 Gy	44.4	64.5	51.0	3.58	17.8	0
3	Nasopharynx	Nasopharyngeal carcinoma, WHO type III	T4N2cM0	68 Gy/2 Gy	55.6	69.4	85.2	35.1	54.9	12.2
4	L maxillary sinus	Squamous cell carcinoma	T4bN0M0	70.2 Gy/1.8 Gy	8.23	35	0	59.7	74	93.8
5	R ethmoid sinus	Sinonasal undifferentiated carcinoma	T4aN0M0	63 Gy/2 Gy	47.6	60.2	67.9	11.8	40.7	0
6	R ethmoid sinus	Sinonasal undifferentiated carcinoma	T2N0M0	59.4 Gy /1.8 Gy	30.0	60.9	22.6	16.2	50.7	5.1
7	L maxillary and ethmoid sinuses	Neuroendocrine carcinoma	T4bN0M0	60 Gy/2 Gy	23.7	51	1.5	58.6	80.3	87.8
8	R maxillary sinus	Squamous cell carcinoma	T2N0M0	59.4 Gy/1.8 Gy	31.3	63.3	31.0	11.0	51.0	1.1
9	R nasal vestibule	Squamous cell carcinoma	T4aN0M0	73.2 Gy/2 Gy/1.2 Gy BID	40.1	65.7	38.4	36.9	65	32.1

^†Listed as total dose/dose per fraction. BID: twice a day fractions.

^*Doses to the retina, as defined in the methods section.