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Abstract Title:

The Possible Link Between Vitamin D Levels and Exudative Age-related Macular Degeneration.

Abstract Source:

Oman Med J. 2020 Jan ;35(1):e83. Epub 2020 Jan 5. PMID: 31993223

Abstract Author(s):

Emrah Kan, Elif Kılıç Kan, Özlem Ekşi Yücel

Article Affiliation:

Emrah Kan

Abstract:

Objectives: We sought to evaluate the possible correlation between serum vitamin D levels and exudative age-related macular degeneration (AMD).

Methods: We conducted a cross-sectional study including 95 patients with exudative AMD and 95 healthy age- and sex-matched controls. The participants' serum 25-hydroxyvitamin D3 (25(OH)D3) levels were measured, and the results were classified into three categories: deficient (<20.0 ng/mL), insufficient (20.1-29.9 ng/mL), and sufficient (>30.0 ng/mL). We compared serum 25(OH)D3 levels between the two study groups and the AMD ratio between the patients with deficient serum 25(OH)D3 levels and those with levels in the sufficient and insufficient ranges.

Results: The median 25(OH)D3 levels were significantly lower in patients with AMD compared to the control subjects (0.042). The frequencies of patients with AMD among the vitamin D categories were statistically significant (0.043). Subgroup analysis showed that the frequency of patients with AMD and deficient vitamin D levels was significantly higher than that found in the patients who had sufficient and/or insufficient ranges of vitamin D levels (55.0% vs. 36.0%,0.043, respectively).

Conclusions: Serum 25(OH)D3 levels may have an impact on the neovascular type of AMD. As 25(OH)D3 levels decrease, the frequency of AMD increases.

Study Type : Human Study

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