Halo parameters in different minimum pupil groups
| Low minimum pupil (n=173) | High minimum pupil (n=24) | ||||
| Mean | SD | Mean | SD | ||
| Minimum pupil (mm) | 3.26 | 0.39 | 4.20 | 0.30 | <0.001 |
| SE (D) | −6.30 | 2.79 | −6.36 | 3.12 | 0.906 |
| Halo radius (arc minutes) | 152.89 | 53.69 | 189.58 | 68.11 | 0.014 |
| Score | 65.59 | 18.72 | 53.62 | 22.37 | 0.011 |
D, dioptre; SE, spherical equivalent.