Comparison of ZETA Fast (PTS) (Optopol Technology) and Humphrey SITA Fast (SFA) (Carl Zeiss Meditec) Perimetric Strategies

Table 2

The number of times (with the percentages in parentheses) that the reading from the Optopol machine was less than, equal to, or greater than the reading from the Zeiss machine.

	PSD		VFI
	Normal	Glaucoma	Normal	Glaucoma
Optopol <	16 (62%)	3 (12%)	4 (15%)	18 (69%)
Optopol =	0 (0%)	0 (0%)	9 (35%)	0 (0%)
Optopol >	10 (38%)	23 (88%)	13 (50%)	8 (31%)

PSD readings are in the left two columns, with VFI readings in the right columns.