Table 2.

Classification of field series using progressor

	Clinician B
Clinician A	Definitely stable	Probably stable	Probably progressing	Definitely progressing
Definitely stable	7	0	0	0
Probably stable	0	0	1	0
Probably progressing	0	4	2	4
Definitely progressing	0	1	2	6

*Weighted kappa = 0.63 (SE 0.13).

Classification of the 27 visual field series by clinician A and clinician B when using progressor. These clinicians now agreed exactly on the assessment of 15 series (along the diagonal of the table). “Serious disagreements” have been reduced and the table suggests closer conformity between the clinicians when they assessed the series with progressor