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Table 1 Ocular response analyzer (ORA) clinical study [45]

From: Biomechanical diagnostics of the cornea

Parameter

NE (n)

Clin Ectasia (n)

Cut-off

Sensitivity (%)

Specificity (%)

AUC

95% CI

p2area

112

41

≤1554.438

80.5

96.4

0.939

0.888 to 0.971

p1area

112

41

≤2865.500

82.9

89.3

0.929

0.877 to 0.965

CRF

112

41

≤8.600

87.8

80.4

0.895

0.835 to 0.939

CH

112

41

≤8.700

75.6

86.6

0.852

0.786 to 0.904

  1. NE=  normal eyes, AUC=  area under the receiver operating characteristics curve, CI=  confidence interval, p1area = area under the waveform peak during the first applanation, p2area=  the area under the waveform peak during the second applanation, CH=  corneal hysteresis, CRF=  corneal resistance factor