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Related Experiment Videos

Antioxidant intake and primary open-angle glaucoma: a prospective study.

Jae H Kang1, Louis R Pasquale, Walter Willett

  • 1Channing Laboratory, Department of Medicine, Harvard Medical School and Brigham and Women's Hospital, 181 Longwood Avenue, Boston, MA 02115, USA. nhjhk@channing.harvard.edu

American Journal of Epidemiology
|August 14, 2003
PubMed
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This study found no significant link between dietary antioxidant intake and primary open-angle glaucoma risk. Researchers examined carotenoids, vitamins C and E, and vitamin A in large health studies, observing no strong associations.

Area of Science:

  • Ophthalmology
  • Nutritional Science
  • Epidemiology

Background:

  • Primary open-angle glaucoma (POAG) is a leading cause of irreversible blindness worldwide.
  • Dietary antioxidants are hypothesized to play a role in ocular health and disease prevention.
  • Understanding the relationship between antioxidant intake and POAG risk is crucial for public health recommendations.

Purpose of the Study:

  • To investigate the association between the intake of specific dietary antioxidants and the risk of developing primary open-angle glaucoma.
  • To analyze data from two large, prospective cohort studies to assess this relationship.

Main Methods:

  • Utilized data from the Nurses' Health Study and the Health Professionals Follow-up Study, including over 116,000 participants aged 40+.
  • Dietary intake of antioxidants (alpha-carotene, beta-carotene, beta-cryptoxanthin, lycopene, lutein/zeaxanthin, vitamins C, E, and A) was assessed using validated food frequency questionnaires.

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  • Analyzed 474 confirmed POAG cases using Cox proportional hazards models and pooled results with random effects models.

    • Main Results:

    • The pooled multivariate rate ratios for POAG comparing the highest to lowest quintiles of intake showed no statistically significant associations for any of the assessed antioxidants.
    • Specific rate ratios included: alpha-carotene 1.17 (95% CI: 0.87, 1.58), beta-carotene 1.10 (95% CI: 0.82, 1.48), lycopene 0.82 (95% CI: 0.60, 1.12), and vitamin C 1.05 (95% CI: 0.59, 1.89).

    Conclusions:

    • The study did not find evidence to support a strong association between the consumption of common dietary antioxidants and the risk of primary open-angle glaucoma.
    • Further research may be needed to explore other dietary factors or mechanisms in POAG development.