Nơi xuất xứ
Shanghai, China
Product name
Autorefractor keratometer
VD Range
0.0, 12.0, 13.75, 15.0
Spherical Range
-20.00D ~ + 20.00D (VD = 12mm, 0.01, 0.06, 0.12, 0.25 Increments)
Cylinder Range
0.00D ~ + 10.00D (0.06, 0.12, 0.25 Increments)
Axis
1° ~ 180° (1° Increments)
Average Measurement Time
<0.5 seconds.