Table 1. The illumination and duration of light adaptation.
| Adaptometer | Illumination (cd/m2) | Duration |
| Goldmann-Weekers | 445-668 | 5min |
| Metro-vision | 780/250 | 5min |
| Roland | 7000 | 5min |
| YAK-II | 640 | 5min |
| AdaptDx | 1.8×104 | 0.8ms |
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