| Eyepiece magnification | 12.5× |
| Total magnification | 18× |
| Corneal radius of curvature | 5.5 to 11mm |
| Minimum Division | Radius 0.02mm,Dioptor 0.25 dptr. |
| Corneal refractive power | 31.00 to 61.00 dptr. |
| Axis of corneal astigmatism | 0 to 180° |
| Axial measurement tolerance | 90°+-4° |
| Diopter adjusting scale | 0 to ±5 dptr. |
















