Table 1.
Descriptive characteristics of participants, task performance, and lutein/zeaxanthin concentrations.
| Age (Years) | Sex (% Female) | Race (% Caucasian) | Education (Years) | JLO Task Accuracy (Max = 60) 1 | MPOD (o.d.) | Serum L & Z (μmol/L) 2 |
|---|---|---|---|---|---|---|
| 71.75 ± 6.16 | 58.8 | 100.0 | 16.1 ± 3.15 | 52.53 ± 4.49 | 0.495 ± 0.177 | 0.321 ± 0.170 |
JLO = Judgement of Line Orientation. MPOD = macular pigment optical density. o.d. = optical density, the log ratio of transmitted light passing through the macula. 1 Data available for 40 participants. 2 Data available for 46 participants.