TABLE 1.

Visual acuity, visual field, and tumor were compared between mild and heavy optic chiasma compression case groups.

Tumor and optic chiasma parameters (mm)	Classification based on optic chiasma compression			t	P
	Case group 1	Case group 2	Control group
BCVA (LogMAR)	0.15 ± 0.19	0.71 ± 0.61	0.03 ± 0.05		0.00
MD (dB)	1.29 ± 3.17	8.50 ± 7.53	0.62 ± 0.92		0.00
Epitaxial height of sella turcica diameter line	3.68 ± 2.76	16.69 ± 6.40		−9.39	0.00
Anteroposterior diameter line	19.98 ± 6.43	30.54 ± 7.91		−5.29	0.00
Horizontal diameter line	18.67 ± 6.43	26.57 ± 8.57		−3.78	0.00
Vertical diameter line	19.74 ± 6.10	36.08 ± 7.79		−8.42	0.00
Optic chiasma thickness	2.72 ± 0.91	1.57 ± 0.78	2.95 ± 0.25	4.97	0.00