8-1
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8. SPECIFICATIONS
8.1 Measurement performance
8.1.1 Refractive power measurement
● Spherical refractive power (S)
-30.00 D to +25.00 D (at VD = 12.0 mm)
0.01 D / 0.12 D / 0.25 D steps
● Cylindrical refractive power (C)
0 D to +/-12.50 D (at VD = 12.0 mm)
0.01 D / 0.12 D / 0.25 D steps
8.1.2 Corneal curvature measurement
● Corneal curvature radius
● Corneal astigmatic axis
8.1.3 Intraocular pressure measurement
1 mmHg to 60 mmHg (1 hPa to 80 hPa)
1 mmHg (1 hPa) step
0.1 mmHg (1 hPa) step (for average)
8.1.4 Corneal thickness measurement