Corneal changes across shift by total amine concentration
| Full shift total amine concentrations (mg/m3) | n | Presence of corneal opacity in either eye* | Prevalence of increased corneal thickness either eye | Mean change in corneal thickness (mm) (SD) | Median change in corneal thickness (mm) | Range of change in corneal thickness (mm) |
|---|---|---|---|---|---|---|
| *Either grade 1, 2, or 3. | ||||||
| 0.84–7.30 | 26 | 3 (12%) | 17 (65%) | −0.0015 (0.0073) | 0.0003 | −0.0250 to 0.0055 |
| 7.31–13.80 | 57 | 13 (23%) | 39 (68%) | 0.0004 (0.0060) | 0.0010 | −0.0155 to 0.0200 |
| 13.81–20.33 | 13 | 8 (62%) | 12 (92%) | 0.0065 (0.0087) | 0.0050 | −0.0055 to 0.0285 |