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Axis | 0 – 180º |
Vertex distance | 0/10.5/12/13.75/15/16.5 |
Corneal astigmatism, D | 0D – ±12.00D |
Cylinder, dpt | 0D – ±12.00D |
measurement range Sph: | –20.00D – +23.00D (VD = 12 mm) |
Measurement step | 0.01D/0.12D/0.25D |