Abstract

To investigate the prevalence and risk factors of age-related macular degeneration features among pilots of Republic of Korea Air Force. This retrospective, cross-sectional study was performed with a total of 2781 Republic of Korea Air Force pilots who underwent regular medical examinations between 2020 and 2021. Age-related macular degeneration features were determined and graded by fundus photographs. Risk factors were identified with logistic regression analysis in odds ratio (OR) and 95% confidence interval (CI). The prevalence was 12.9% in the Republic of Korea Air Force pilots and 35.2% in those older than 50 years. Pilots with age-related macular degeneration features were positively associated with age (OR: 1.082, CI: 1.067-1.096, P < 0.001), male sex (OR: 0.229, CI: 0.056-0.939, P = 0.041), smoking (OR: 1.027, CI: 1.008-1.047, P = 0.006), flight time (OR: 1.004, CI: 1.003-1.005, P < 0.001), total cholesterol (OR: 1.004, CI: 1.000-1.007, P = 0.033), and low-density lipoprotein (OR: 1.005, CI: 1.001-1.008, P = 0.011). Aircraft type was also identified as a risk factor (OR: 0.617, CI: 0.460-0.827 for carrier, OR: 0.572, CI: 0.348-0.940 for helicopter, P = 0.002), with fighter pilots having a higher risk than carrier and helicopter pilots. The results were similar for pilots older than 50 years. The prevalence of age-related macular degeneration features in Republic of Korea Air Force pilots was higher than in other general populations studied. Identified risk factors such as flight time and aircraft type suggest potential occupational risk of age-related macular degeneration in aviators.

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