Changes in visual function following peroral astaxanthin

Akira Nakamura, Ryoko Isobe, Yasuhiro Otaka, Yasuko Abematsu, Daisuke Nakata, Chika Honma, Shizuka Sakurai, Yoshiaki Shimada, Masayuki Horiguchi

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)


We evaluated the effect of astaxanthin on visual function in 49 eyes of 49 healthy volunteers. They were over 40 years of age. They were divided into 4 groups matched for age and gender. Each group was given peroral astaxanthin once a day. The dosage was 0 mg, 2 mg, 4 mg, or 12 mg for each group. After ingestion of astaxanthin for consecutive 28 days, the uncorrected far visual acuity significantly improved in groups receiving 4 mg or 12 mg. The accommodation time significantly shortened in groups receiving 4 mg or 12 mg. There was no change in refraction, flicker fusion frequency, or pupillary reflex.

Original languageEnglish
Pages (from-to)1051-1054
Number of pages4
JournalJapanese Journal of Clinical Ophthalmology
Issue number6
Publication statusPublished - 2004

All Science Journal Classification (ASJC) codes

  • Ophthalmology


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