Evidence map›Paper›PMID 33066702›Full record

ReviewNutrients2020

Vitamin C and the Lens: New Insights into Delaying the Onset of Cataract.

Julie C Lim, Mariana Caballero Arredondo, Andrea J Braakhuis, Paul J Donaldson

Registry-linked trialOpen access · goldAbstract readReview
In one paragraph

Review in Nutrients, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06995586 (The Synergistic Action of Vitamins and Dietary Supplements in Patients With Coronary Artery Bypass Grafting for Improving the Quality of Healthcare Delivery.), which is not on this map. Cited by 61 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 2 pooled it
3.8field-weighted citation impact, top 5% 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.

NCT06995586 nanot yet recruitingnot on this mapstarted 2026, after this paper: background citation

The Synergistic Action of Vitamins and Dietary Supplements in Patients With Coronary Artery Bypass Grafting for Improving the Quality of Healthcare Delivery.

TypeinterventionalSponsorNicosia General HospitalRan2026 to 2028Enrolled108ConditionsCardio-pulmonary Bypass, Cardiovascular Diseases, Omega-3 Polyunsaturated Fatty Acids, Omega-3 SupplementationArmsVitamin C, Omega 3 PUFA (EPO/DHA), Lignin, Lactulose
3 · Its place in the literature

Who cites it

61 citing papers in PubMed, 2 syntheses or guidelines pooled it, 116 citations in OpenAlex.

  1. Pooled it
  2. The Hippo signalling pathway and its impact on eye diseases.Journal of cellular and molecular medicine · 2024
    Pooled it
  3. Trial
  4. Article
  5. Article
  6. Vitamins and nutraceuticals in glaucoma research.European journal of ophthalmology · 2026
    Review
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. [Regulatory Role of the AKT1/AMPK Pathway in Oxidative Stress of Lens Epithelial Cells in Cataract Patients].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2025
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. In Vivo Assessment of an Antioxidant Hydrogel Vitreous Substitute.Journal of biomedical materials research. Part A · 2025
    Article
  20. Protective Effect ofAdvanced biomedical research · 2025
    Article

1 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Julie C LimDepartment of Physiology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1142, New Zealand.
Mariana Caballero ArredondoDiscipline of Nutrition, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1142, New Zealand.
Andrea J BraakhuisDiscipline of Nutrition, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1142, New Zealand.ORCID 0000-0002-6055-0595
Paul J DonaldsonDepartment of Physiology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1142, New Zealand.ORCID 0000-0002-4008-1138
University of Auckland · NZ

Funding

Auckland Medical Research Foundation 3717655
6 · The paper itself

Abstract

Cataracts or clouding of the lens is the leading cause of blindness in the world. Age and diabetes are major risk factors, and with an increasing aging and diabetic population, the burden of cataracts will grow. Cataract surgery is an effective way to restore vision; however, alternatives to cataract surgery are required to reduce the looming cataract epidemic. Since it is well established that oxidative damage plays a major role in the etiology of cataracts, antioxidants have been promoted as therapies to delay and/or prevent cataracts. However, many antioxidant interventions including vitamin C have produced mixed results as anti-cataract therapies. Progress has been made towards our understanding of lens physiology and the mechanisms involved in the delivery and uptake of antioxidants to the lens which may guide future studies aimed at addressing some of the inconsistencies seen in previous animal and human studies. Of interest is the potential for vitamin C based supplements in delaying the onset of cataracts post vitrectomy which occurs in up to 80% of patients within two years. These targeted approaches are required to reduce the burden of cataract on hospitals and improve the quality of life of our aging and diabetic population.

Indexed as

AntioxidantsDietary SupplementsAgingAnimalsAscorbic AcidCataractDiabetes ComplicationsHumansNutritional Physiological PhenomenaOxidative StressRisk FactorsVitrectomyVitreous BodyAntioxidantsAscorbic Acidcataractlensoxidative stressvitamin Cvitrectomyvitreous humor

Identifiers

PMID33066702
PMCPMC7602486
OpenAlexW3093333898

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.