It can be used to measure the radius of cornea's curvature and dioptor.
And it can also be to measure the axis and dioptor of cornea astigmatism.
|Measurement Range Curvature Radius||5.5 - 11mm|
|Minimum Division||Radius: 0.02mm|
Required for Measurement
|R=5.5mm | p1,65mm|
|R=7.5mm | p2.36mm|
|R=11mm | 3.36mm|