Exploring the association between age-related macular degeneration and 25-hydroxy vitamin D level: A causal connection

Age-related macular degeneration, or AMD, is a common cause of permanent loss of vision that mostly affects elderly population. Complex interplay between genetic and environmental variables are part of the pathogenesis. Vitamin D, namely 25-hydroxyvitamin D [25(OH)D], has drawn interest because of its anti-inflammatory and protective characteristics, which may contribute to AMD. Given the current situation of its increasing incidence and the possible significance of vitamin D for retinal health, the purpose of this research was to examine the relationship between blood 25(OH) D levels and AMD severity in the Indian population. : As per the criteria outlined in Age-Related Eye Disease Study (AREDS), 112 patients in a cohort study were divided into three AMD severity groups at the Eye Department of ASCOMS Medical College in India. Clinical evaluations, the gathering of demographic data, and biochemical studies of serum 25(OH) D levels were carried out. Descriptive statistics, correlation analyses, logistic regression, subgroup analysis, and comparisons with other research conducted internationally were among the statistical analyses performed. The study showed a substantial correlation between serum 25(OH) D levels and the severity of AMD compared to early-stage instances (Group 1: mean = 30.5 ng/mL, SD = 4.1), patients with advanced-stage AMD (Group 3) had lower 25(OH) D levels (mean = 25.3 ng/mL, SD = 4.7). In line with previous research, two important risk factors for AMD were found: a history of smoking and a family history of the disease. : In summary, this study provides important new information on the relationship between the severity of AMD and serum 25(OH)D levels in the Indian population. This is consistent with the data that is now available, which indicates that the retina and retinal pigment epithelium have vitamin D receptors. Despite being observational, the results encourage further research into the underlying processes and the causal link. The risk factors that have been found highlight how crucial it is for public health efforts to focus on modifiable variables like smoking. In summary, this study establishes the groundwork for further investigation, which might lead to the development of innovative approaches for managing and preventing AMD.