TABLE 4. Grading of visual field defect.

(A) Type of visual field defect
	Octopus field defect type
	Normal	Arcuate	Functional	Homonymous hemianopia	Bitemporal hemianopia	Inferior defect	Inferior quadrantanopia	Superior defect	Increased blind spot	Vertical step	Total
Humphrey field defect type
Normal	1	0	7	0	0	0	0	9	0	4	21
Arcuate	0	0	3	0	0	0	0	0	0	0	3
Functional	0	0	9	0	0	0	0	1	0	0	10
Homonymous hemianopia	0	0	0	1	0	0	0	0	0	0	1
Bitemporal hemianopia	0	0	1	0	14	0	0	4	0	1	20
Inferior defect	0	0	1	0	1	2	0	0	0	0	4
Inferior quadrantanopia	0	0	0	0	0	0	0	2	0	0	2
Superior defect	0	0	3	0	0	0	0	31	0	0	34
Increased blind spot	0	0	0	0	0	0	0	3	0	2	5
Vertical step	0	0	0	0	0	0	0	0	0	0	0
Total	1	0	24	1	15	2	0	50	0	7	100