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Overall dimensions, cm | 24.8x47.6x47.5 |
measurement range Sph: | -25 ~ +22D |
Cylinder, dpt | +/-10 |
Corneal astigmatism, D | 0 ~ -15 |
Vertex distance | 0,10,12,13,13.5,15mm |
Measurement step | 0.12D/0.25D |