Features of adaptive mechanisms of the cardiovascular system in acquired myopia
DOI:
https://doi.org/10.32782/2786-7684/2025-2-23Keywords:
myopia, cardiovascular system, hemodynamics, adaptive potentialAbstract
Introduction. Acquired myopia is one of the most common refractive anomalies in modern society, and the number of cases continues to grow globally each year. Various factors such as prolonged visual strain, insufficient physical activity, improper lighting, and genetic predisposition contribute to its development and progression. In this context, the study of systemic changes in the body, particularly the adaptive mechanisms of the cardiovascular system in the presence of myopia, is highly relevant.Aim of the work. Conducting a comprehensive analysis of hemodynamic indicators that reflect functional changes in the cardiovascular system, including the adaptive potential, in individuals with acquired myopia.Materials and methods of the study. The study was conducted among 146 volunteers aged 18-35, divided into a control group and a group of individuals with acquired myopia of varying degrees. A clinical and functional examination of the cardiovascular system was performed, key hemodynamic parameters were determined, and calculations and comparisons of functional status indicators between the two groups were carried out.Research results and their discussion. In individuals with acquired myopia, a significant increase was found in systolic blood pressure, the circulatory efficiency coefficient, Robinson index, and adaptive potential. An increase was also observed in heart rate, diastolic and pulse blood pressure, stroke volume, cardiac output, left ventricular work power, systolic index, functional state coefficients of the circulatory and cardiorespiratory systems, Kerdo vegetative index, as well as cardiac and stroke indices. A decrease was noted in heart volume, Hildenbrandt coefficient, total peripheral resistance, and specific peripheral resistance.Conclusions. Acquired myopia is accompanied by systemic functional changes in the cardiovascular system, which are compensatory in nature and may reflect the body's adaptive response to the load on the visual analyzer.
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