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Br J Ophthalmol 89:1031-1035 doi:10.1136/bjo.2004.057778
  • Clinical science
    • Extended reports

Clinical evaluation of frequency doubling technology perimetry using the Humphrey Matrix 24-2 threshold strategy

Table 1

 Sample estimates of discriminatory power and predictive values for SAP and FDT to detect individuals classified as having glaucomatous optic neuropathy in either eye

SAP (HFA 24-2 Sita-Fast) FDT (Matrix 24-2)
Sensitivity, % (95% CI) 80 (44 to 100) 100 (72 to 100)
Specificity, % (95% CI) 52 (38 to 66) 26 (14 to 38)
Positive predictive value (95% CI) 0.26 (0.14 to 0.38) 0.31 (0.18 to 0.44)
Negative predictive value (95% CI) 0.93 (0.86 to 1.00) 1.00 (0.72 to 1.00)

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