Effectiveness of regular courses of treatment for acquired myopia usingthe device «Visotronic Mini» in school conditions

Abstract

Purpose. To study the effectiveness and features of interval courses of treatment for acquired myopia in school conditions using the device «Visotronic Mini». Material and methods. 25 children (50 eyes) were followed up, their average age was 11.16 ± 1.1 years. Among them were 12 boys and 13 girls who underwent 4 courses of optical kinesiotherapy using the device «Visotronic Mini». The interval between treatment courses averaged 6 months. The ophthalmological examination included questionnaires, visometry, ophthalmoscopy, skiascopy, determination of subjective refraction, the margin of relative accommodation (MRA) by the Avetisov method, and the study of binocular stability of visual perception (SVP) to hyperopic retinal defocus (HRD). Results. Interval courses of treatment contributed to the improvement of visual acuity by an average of 0.09 from 0.61 ± 0.25 to 0.7 ± 0.28 (P < 0.001) and to the reduction of refraction by an average of (–) 0.18 dptr from (–) 0.87 ± 0.56 dptr to (–) 0.69 ± 0.65 dptr (P < 0.001). MRA increased by an average of 2.84 dptr from 5.36 ± 2.28 dptr to 8.2 ± 2.18 dptr (P < 0.01). The total visual resolution increased by 254 % in the far-vision mode and by 168 % in the close-vision mode. At the same time, the proportionality coefficient decreased from 1.42 to 1.18. Conclusion. Four courses of optical kinesiotherapy using the device «Visotronic Mini» in school conditions significantly increased the efficiency of the accommodation and vergence apparatus of the eye. A marked decrease in the proportionality coefficient against the background of high functional characteristic sindicates a significant steady improvement in the elastic properties of the sclera and the adaptive resource of the eye as a whole. Keywords: myopia, device«Visotronic Mini», adaptive resource