Prevalence of reported visual symptoms by total amine concentrations
| Full shift total amine concentrations (mg/m3)* | n | Blurry vision | Halo vision | Blue-grey vision |
|---|---|---|---|---|
| *Range was divided into three groups of equal width. | ||||
| 0.84–7.30 | 26 | 3 (12%) | 1 (4%) | 0 (0%) |
| 7.31–13.80 | 57 | 26 (46%) | 11 (19%) | 7 (12%) |
| 13.81–20.33 | 13 | 12 (92%) | 7 (54%) | 8 (62%) |