Evidence map›Paper›PMID 24614948›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2014

Effect of age and other factors on macular pigment optical density measured with resonance Raman spectroscopy.

Akira Obana, Yuko Gohto, Masaki Tanito, Shigetoshi Okazaki, Werner Gellermann, Paul S Bernstein, Akihiro Ohira

Abstract read
PubMed Publisher
In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.7field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Article
  3. "Characterization of visual function parameters in relation to macular pigment optical density in a pediatric population".Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2025
    Article
  4. Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Observational
  10. Article
  11. Article
  12. Article
  13. Review
  14. Factors affecting macular pigment optical density.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2014
    Article
  15. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Akira ObanaDepartment of Ophthalmology, Seirei Hamamatsu General Hospital, Sumiyoshi 2-12-12, Naka-ku, Hamamatus City, Sizuoka, 430-8558, Japan, obana@sis.seirei.or.jp.
Yuko Gohto
Masaki Tanito
Shigetoshi Okazaki
Werner Gellermann
Paul S Bernstein
Akihiro Ohira
Seirei Hamamatsu General Hospital · JPShimane University · JPUniversity of Utah · USHamamatsu University School of Medicine · JP

Funding

Biochemistry and Pharmacology of the Macular CarotenoidsR01EY011600 · NEI · UTAH STATE HIGHER EDUCATION SYSTEM--UNIVERSITY OF UTAH · PI BERNSTEIN, PAUL STEVEN · 2004 to 2025
$7.7M
BIOCHEMISTRY AND PHARMACOLOGY OF THE MACULAR CAROTENOIDSR29EY011600 · NEI · UNIVERSITY OF UTAH · PI BERNSTEIN, PAUL STEVEN · 1997 to 2001
$209k
NEI NIH HHS EY-11600
6 · The paper itself

Abstract

backgroundMacular pigment is a defense system against phototoxic damage of the retina by visible light. It is still under debate whether or not macular pigment optical density (MPOD) levels decline with age, because the age effect varied depending on the technique used to measure MPOD levels. Resonance Raman spectroscopy (RRS) is an objective method to measure MPOD, and studies using RRS showed a drastic age-related decline of MPOD levels; however, since RRS measurements are influenced by cataracts, it has been argued that the age-related decline of RRS measurements is an artifact from lens changes in aged subjects. In the present study, MPOD levels were measured with RRS in pseudophakic eyes, and the effects of age and other factors on MPOD levels were investigated.

methodsThe subjects included 144 patients with no fundus disorders who received cataract surgery with untinted intraocular lens implantation. MPOD levels were measured in 144 eyes using integral RRS 1 day post surgery. Factors potentially associated with MPOD levels such as age, gender, smoking habits, body mass index, diabetes, glaucoma, axial length, pupil diameter, spherical equivalent refractive error, and foveal thickness were examined by multiple regression analysis.

resultsThe macular pigment RRS levels ranged from 776 to 11,815 Raman counts, with an average level of 4,375 ± 1,917 (standard deviation [SD]) Raman counts. Multiple regression analysis revealed that age and axial length were significantly correlated with low MPOD values (regression coefficient of -59 for age and -404 for axial length, respectively). No significant correlations were observed for other factors.

conclusionsAfter removing the potentially confounding effect of age-related lens yellowing on the RRS measurements, age remained a significant patient parameter for lowered MPOD levels. MPOD levels were found to decline by more than 10 % each decade. Axial length was also a negative predictor of MPOD levels. Since the present study included only patients aged 50 years and older, the effects of age and other factors on MPOD levels for younger subjects remain unknown.

Indexed as

Spectrum Analysis, RamanAgedAged, 80 and overAgingBody Mass IndexCataract ExtractionDiabetes ComplicationsFemaleHumansLens Implantation, IntraocularLuteinMacular PigmentMaleMiddle AgedPseudophakiaSmokingLuteinMacular PigmentZeaxanthins

Identifiers

PMID24614948
OpenAlexW2013965571

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.