Особенности развития глаз и состояния рефракции у детей коренных малочисленных народов Севера, проживающих в Приамурье

Abstract

Purpose. To study the anatomical and morphometric parameters of the eyes and the state of refraction in children of the indigenous and alien population living in the Khabarovsk krai of Russia. Material and methods. The study included 180 children living in the Nanai District of the Khabarovsk krai, aged from 3 months to 18 years. Two groups of children were formed, according to the criteria of belonging to the indigenous/alien population. 1st group – 84 children of the indigenous population – Nanai. 2nd group – 96 children of the alien population - peoples related to the Slavs. Both groups were matched for gender and age. In each of these groups, 5 age subgroups were formed. The comparison group is the average statistical indicators of the child population of Russia in the corresponding subgroups. Results. In comparative study, difference in the refractive index of the cornea was not found between the groups. A statistically significant delayed growth of the axial length of the eye was revealed in children of the indigenous population of the Khabarovsk krai in the age subgroups of 4–6, 7–10, 11–14 years old, in comparison with similar subgroups children of the newcoming population and with the average Russian indicators. Tendency to myopization was revealed in children of the 1st group from 7–10 years and older at retinoscopy on narrow pupil, in whom, after cycloplegia with 0,5–1% solutions of Cyclopentolate, a shift towards hyperopic refraction was revealed. Conclusion. The revealed features of the development of eyes in children of the indigenous population of the Khabarovsk krai must be taken into account, conducting them retinoscopy only in the conditions of achieving complete medical accommodation paresis, and, if necessary, to prescribe them adequate optical correction. This will allow timely prevention of the formation of complications associated with the peculiarities of the development of their refraction.