Comparison of the axis of the cylindrical component measured by the PowerRefractor with both non-cycloplegic subjective and SRW-5000 autorefractor objective refraction
| PowerRefractor v | All prescriptions with a cylindrical component (%) | Prescriptions with a cylindrical component (subjective) ⩾0.75D (%) | ||
|---|---|---|---|---|
| Subjective | SRW-5000 | Subjective | SRW-5000 | |
| No of subjects | 74 | 124 | 30 | 37 |
| Within ±5° | 32 | 23 | 40 | 41 |
| Within ±10° | 54 | 37 | 67 | 59 |
| Within ±15° | 65 | 50 | 80 | 73 |
| Within ±20° | 70 | 56 | 87 | 76 |