Observations placeholder

Effects of dietary supplementation with a combination of fish oil, bilberry extract, and lutein on subjective symptoms of asthenopia in humans

Identifier

018921

Type of Spiritual Experience

Background

Asthenopia (aesthenopia) from the Greek word "asthen-opia : ασθεν-ωπία" or eye strain is an ophthalmological condition that manifests itself through nonspecific symptoms such as fatigue, pain in or around the eyes, blurred vision, headache and occasional double vision

The supplements were only used so that the test were specific to certain chemicals.  In real life you use the foods.

A description of the experience

Biomed Res. 2011 Dec;32(6):387-93.

Effects of dietary supplementation with a combination of fish oil, bilberry extract, and lutein on subjective symptoms of asthenopia in humans.

Kawabata F1, Tsuji T.

  • 1Human Life Science R&D Center, Nippon Suisan Kaisha, Ltd., Tokyo 100-8686, Japan. f-kawabata@nissui.co.jp

Abstract

The aim of this study was to determine the effects of dietary supplementation with a combination of fish oil, bilberry extract, and lutein on subjective symptoms of asthenopia in humans by a double- blind, randomized, parallel-group, and placebo-controlled trial.

In the Active group, eleven subjects ingested a supplement containing omega-3 fatty acid-rich fish oil (docosahexaenoic acid 783 mg/day, eicosapentaenoic acid 162 mg/day), bilberry extract (anthocyanidin 59 mg/day), and lutein (17.5 mg/day) in soft gel capsule form, every day for 4 weeks.

In the Placebo group, nine subjects ingested placebo capsules.

Before and after supplementation, subjects completed a questionnaire to determine their asthenopia symptoms and were also assessed for mental fatigue symptom by the visual analog scale (VAS) test.

Asthenopia symptoms such as "stiff shoulder, low back pain", "frustration", "dry-eye", and "stuffy head" were improved in the Active group. Furthermore, a score of mental fatigue was improved after 4 weeks of supplementation, and no side effects were observed after the 4-week supplementation and a 2-week washout period in the Active group.

These results suggest that dietary improvements with the combination of omega-3 fatty acid-rich fish oil, bilberries, and lutein [rich foods] may safely improve subjective symptoms of asthenopia and mental fatigue in humans.

PMID:  22199129

The source of the experience

PubMed

Concepts, symbols and science items

Concepts

Symbols

Science Items

Activities and commonsteps

Commonsteps

References