ABSTRACT
Objective:To improve the visual acuity assessment system in deaf-mute children based on an original and fundamentally new chart for visometry.Methods:The study included 31 deaf-mute children (62 eyes) without previously diagnosed ocular pathology at the age of 2-11 years.Visometry was performed using standard Golovin-Sivtsev table (Russian: Таблица Головина-Сивцева) and a fundamentally new original technique Just Evident Images/Jonnazarov Eldor Ikhtiyorovich (abbreviated as JEI/JEI), including cards duplicating optotypes.The set of optotypes in the JEI/JEI chart consists of 13 color and black optotypes of various sizes, equal in width and height, which reflect well-known and easily recognized objects by children even at an early age.Results:When the results of visometry according to the Golovin chart and using the original technique coincided, which occurred in 16(51.6%) and 13(41.9%) cases, respectively, when determining the visual acuity of the right and left eyes, respectively, the effectiveness of both methods was evaluated as identical.In 15(48.4%) and 18(58.1%) cases, when examining the right eye and the left eye, respectively, the visometry data differed with a homogeneous trend: the indicator obtained using the JEI/JEI charts exceeded the same indicator when using the Golovin charts in the range of 0.1-0.4; and in the group of children aged 2-5 years -0.2-0.4.Conclusions:The results obtained indicate the prospects of using the JEI/JEI chart for visometry in deaf-mute children in clinical practice.The developed technique of duplicating optotypes with the help of special cards simplifies and enhances the effectiveness of visometry.