The effect of nutritional supplementation on the multifocal electroretinogram in healthy eyes

Abstract

BACKGROUND: Previous studies have demonstrated an increase in macular pigment optical density (MPOD) with lutein (L)-based supplementation in healthy eyes. However, not all studies have assessed whether this increase in MPOD is associated with changes to other measures of retinal function such as the multifocal ERG (mfERG). Some studies also fail to report dietary levels of L and zeaxanthin (Z). Because of the associations between increased levels of L and Z, and reduced risk of AMD, this study was designed to assess the effects of L-based supplementation on mfERG amplitudes and latencies in healthy eyes. METHODS: Multifocal ERG amplitudes, visual acuity, contrast sensitivity, MPOD and dietary levels of L and Z were assessed in this longitudinal, randomized clinical trial. Fifty-two healthy eyes from 52 participants were randomly allocated to receive a L-based supplement (treated group), or no supplement (non-treated group). RESULTS: There were 25 subjects aged 18-77 (mean age ± SD; 48 ± 17) in the treated group and 27 subjects aged 21-69 (mean age ± SD; 43 ± 16) in the non-treated group. All participants attended for three visits: visit one at baseline, visit two at 20 weeks and visit three at 40 weeks. A statistically significant increase in MPOD (F = 17.0, p ≤ 0.001) and shortening of mfERG ring 2 P1 latency (F = 3.69, p = 0.04) was seen in the treated group. CONCLUSIONS: Although the results were not clinically significant, the reported trend for improvement in MPOD and mfERG outcomes warrants further investigation.

Publication DOI: https://doi.org/10.1007/s10633-016-9532-3
Divisions: College of Health & Life Sciences > School of Optometry > Optometry
College of Health & Life Sciences > School of Optometry > Optometry & Vision Science Research Group (OVSRG)
College of Health & Life Sciences
College of Health & Life Sciences > School of Optometry > Vision, Hearing and Language
Additional Information: The final publication is available at Springer via http://dx.doi.org/10.1007/s10633-016-9532-3
Uncontrolled Keywords: lutein,macular pigment optical density,multifocal electroretinogram,randomized trial
Publication ISSN: 1573-2622
Last Modified: 06 May 2024 07:14
Date Deposited: 30 Mar 2016 11:50
Full Text Link: http://link.spr ... 0633-016-9532-3
Related URLs:
PURE Output Type: Article
Published Date: 2016-04
Published Online Date: 2016-03-17
Accepted Date: 2016-02-29
Submitted Date: 2015-05-14
Authors: Berrow, Emma J.
Bartlett, Hannah E (ORCID Profile 0000-0002-7531-6902)
Eperjesi, Frank (ORCID Profile 0000-0003-4358-0095)

Download

[img]

Version: Accepted Version

| Preview

Export / Share Citation


Statistics

Additional statistics for this record