Table 2.

Overview of the patients with improvement or aggravation of dysfunction of the optical system after RT

Patients	CTV (ccm)	RT	Surgeries (n)	Follow-up (years)	Dysfunction before RT	Outcome
RH, m, 69 years	2.46	SRT	1	6	None	New oculomotor nerve palsy; serveral other causes possible: dilatative angiopathy, ischaemic neuropathy, neurofibromatosis type 2
TH, m, 61 years	2.49	SRT	2	9	Visual field	(mild) Aggravation
BM, f, 72 years	7.73	RT and SRT	2	1	None	New visual acuity impairment left (improvement after cortisone); preexisting amaurosis right after surgery; conventional pre-irradiation in 1996 and 04–05/2005 SRT; cardiac death 18 months after SRT
GR, f, 72 years	3.47	SRT	1	11	Visual field	Improvement
TU, f, 62 years	19.81	(primary) SRT	0	4	Visual acuity/visual field	Improvement (visual field >visual acuity)
ER, m, 64 years	7.66	SRT	2	7	Visual acuity/visual field	Improvement (visual field)

f female, m male, RT radiotherapy, SRT stereotactic radiotherapy, CTV clinical target volume