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Pharmacologic Induction of Epidermal Melanin and Protection Against Sunburn in a Humanized Mouse Model
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The Relationship Between Melanin and Glaucoma: A Case-control Study.

Abeba T Giorgis1, Amer F Alsoudi2,3, Abiye M Alemu1

  • 1Department of Ophthalmology, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia.

Journal of Glaucoma
|September 5, 2020
PubMed
Summary
This summary is machine-generated.

This study found no significant link between skin pigmentation and glaucoma. Objective melanin measurements did not show a statistically significant difference between glaucoma patients and controls, suggesting skin color is not a major risk factor.

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Area of Science:

  • Ophthalmology
  • Dermatology
  • Public Health

Background:

  • Previous studies suggested a link between darker skin color and glaucoma risk based on subjective assessments.
  • Objective measurement of cutaneous pigmentation is needed to validate this association.

Purpose of the Study:

  • To objectively determine if skin pigmentation is a risk factor for glaucoma.
  • To investigate the association between melanin levels and glaucoma prevalence.

Main Methods:

  • A case-control study was conducted in Ethiopia with participants aged 40+.
  • Melanin measurements were taken from the inner arm using a Dermacatch device.
  • Cases (glaucoma patients) were compared to age-matched controls without glaucoma.

Main Results:

  • High agreement was found between triplicate melanin measurements (ICC=0.99).
  • Mean melanin values were similar between glaucoma cases (704 units) and controls (694 units).
  • No statistically significant association was found between skin melanin and glaucoma after adjusting for sex and season (OR=1.15, 95% CI: 0.59-2.24).

Conclusions:

  • This study did not find a significant association between skin pigmentation and glaucoma.
  • Objective assessment of cutaneous pigmentation does not support it as a risk factor for glaucoma.