Clinical Study

Effect of Supplemental Lutein and Zeaxanthin on Serum, Macular Pigmentation, and Visual Performance in Patients with Early Age-Related Macular Degeneration

Figure 1

Changes in serum lutein concentration (a) and macular pigment optical density (b) at baseline, 24 weeks, 48 weeks, and 2 years in patients with early age-related macular degeneration, treated with 10 mg/d lutein, 20 mg/d lutein, lutein (10 mg/d) + zeaxanthin (10 mg/d), or placebo. Values are expressed as group mean ± SEMs. Significant increase was observed in all non-placebo groups compared to that of baseline or placebo group (all , paired -test). Significant time and treatment effects were observed in serum lutein concentration, (repeated-measures ANOVA), whereas only significant time effect was seen in MPOD, (repeated-measures ANOVA).
(a)
(b)