[Influence of virtual reality helmet on visual functions].
The authors studied influence of new computer device--video helmet--on visual functions of children, adolescents and adults.
Biomedical subjects
Publications and source records attributed to T P Kashchenko.
The authors studied influence of new computer device--video helmet--on visual functions of children, adolescents and adults.
Examination of 328 patients with vertical squint has revealed peculiarities of its clinical forms. Their characteristics are: I. Concomitant vertical squint; II. A mixed form--concomitant convergent or divergent squint with a vertical component; III. Paretic or paralytic vertical squint; IV. Atypical kinds of vertical squint. Special attention is drawn to the presence of torticollis, difference in lid slit width, pseudoptosis, diplopia. Basic principles of treatment of vertical squint corresponding the clinical form are suggested. Results of treatment in patients with different forms of vertical squint are analysed.
The paper analyses results after treatment of patients with vertical squint (53 persons) using a principally new method--binarimetry, as one of diploptic methods. All patients had residual vertical deviation after surgical treatment or a small angle (to 10 degrees). The device and the method of treatment are described. In the most of patients, binocular vision was restored (77.3%) on account of development of vertical fusional reserves and correction of residual deviation.
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A new method for diploptic treatment of strabismus is proposed, based on phase division of visual fields using liquid crystal eyeglasses --computer complex. The method is based on stereovision training (allowing stereothreshold measurements up to 150 ang. sec.). The method was tried in examinations of two groups of children: 10 controls and 74 patients with strabismus. Examinations of normal controls gave new criteria for measuring fusion reserves and stereovisual acuity by the proposed method. The therapeutic method was tried in 2 groups of patients. Time course of visual function improvement was followed up by several criteria: changes in binocular status by the color test and improvement of in-depth and stereoscopic visual acuity. The method is recommended for practice. The authors discuss the problem of small angle strabismus.
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The paper for the first time presents statistically processed data on the cyclofusion reserves of subjects with normal binocular vision (25) for different age groups: adolescents aged 12-14 and adults aged 18-35 years. Two types of tests for evaluating cyclofusion under conditions of haploscopy (sinoptophore) are offered. The results can be used as a criterion for evaluating cyclofusion in various oculomotor abnormalities: squint, diplopia, and cyclotropia.
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