Evaluation of the reaction of the visual system of students of different age groups to a printed load with different design parameters

Abstract

The results of the evaluation of the visual system of 199 students of three age groups for a printed load with different parameters of registration using the method of pupilography are presented. Comparison of the functional response of children and teenagers to different types of text load allowed to see that decreasing of the print size among teenagers, when the visual system is already formed and sufficiently resistant to unfavorable effects, causes a much weaker reaction than among children. Among teenagers, the number of persons with a pronounced asymmetry of functioning increases insignificantly with a soft load (only 1.5%) and only 6.5% when working with a "hard" load. Obviously, the positive influence of the "soft" load on the children's visual system (significant growth of symmetric and slightly asymmetric functioning in comparison with the initial state) is evident.