Table 3.

Visual function

	Baseline status	Improved	Unchanged	Worsened	Fisher’s exact test
Anterior skull base meningiomas	Visual acuity intact	–	18	1	p = 1.000
	Visual acuity impaired	2	16	2
	Visual fields intact	–	21	1	p = 0.068
	Visual fields impaired	3	9	5
Pituitary adenomas	Visual acuity intact	–	33	1	p = 0.064
	Visual acuity impaired	2	15	4
	Visual fields intact	–	37	5	p = 0.192
	Visual fields impaired	3	6	4

Fisher’s exact test (two tailed). Comparing the fraction of patients ending up with an unchanged or improved versus worsened function, on last follow-up, who had an intact versus impaired visual function at baseline