Astaxanthin and eye health

"_Can Astaxanthin improve human eyestrain and visual function? Nagaki et al (2002) looked at the effect of Astaxanthin on the degree of eyestrain in visual display terminal (VDT) workers. The visual function of VDT workers that took 5 mg / day of Astaxanthin for four weeks was compared to that of VDT workers that took only placebo for the same period.

The results indicated that accommodation amplitude (diopters) after Astaxanthin treatment was significantly higher than before supplementation, while for the placebo group it was unchanged, demonstrating improved specific visual function for VDT workers after Astaxanthin supplementation.

An additional study examined the effect of Astaxanthin on visual function of healthy human volunteers over 40 years of age (Nakamura et al 2004).

Following ingestion of Astaxanthin for 28 days, the uncorrected far vision acuity significantly improved in groups receiving 4 mg and 12 mg per day; accommodation time was significantly shortened in these two groups as well…"