Table 4 Correlation analyses between age, personal characteristics, sleeping conditions, alcohol exposure and PLR parameters
From: The pupillary light reflex (PLR) as a marker for the ability to work or drive – a feasibility study
Acceler-ation | Contraction velocity | Half dilatation time | Initial diameter | Latency | Line integral | Quarter dilatation velocity | |
|---|---|---|---|---|---|---|---|
Age | 0.35 | −0.23 | 0.12 | −0.24 | 0.33 | −0.30 | −0.37 |
Light eye color | 0.08 | −0.04 | 0.04 | − 0.15 | 0.10 | − 0.05 | − 0.11 |
Myopia/hyperopia | 0.08 | 0.02 | 0.06 | 0.04 | 0.11 | 0.03 | −0.02 |
Astigmatism | −0.12 | 0.16 | 0.01 | 0.10 | −0.08 | 0.21 | 0.16 |
Smoking | 0.19 | −0.11 | 0.11 | 0.07 | 0.17 | −0.20 | −0.21 |
Breath alcohol | 0.00 | 0.13 | 0.12 | 0.19 | −0.01 | 0.20 | 0.11 |
Sleeping disorder | −0.09 | −0.19 | − 0.04 | −0.12 | − 0.07 | −0.21 | − 0.20 |
Hours awake | 0.04 | −0.05 | 0.02 | −0.12 | 0.04 | −0.09 | −0.06 |
Subjective fatigue | −0.02 | −0.03 | − 0.02 | −0.05 | 0.02 | −0.01 | − 0.03 |