As is known, the main indicators of the stable functioning of fusion mechanisms – the physiological basis of binocular
perception – are the fusion reserves (FR), an accurate assessment of which is still problematic. To measure the FR, a
small mismatch between the accommodation and vergence systems is introduced and gradually increasing to reach certain
critical angles at which the fusion mechanisms cease to function, as judged by the subjective sensations of the subjects
reporting the break of the binocular image into two monocular ones. The subjectivity of such assessments of FR, as well
as poorly studied dependence of FR on the parameters of test objects and measurement procedures, make it difficult to
determine standard values and to create databases on RF. To overcome these shortcomings inherent in traditional methods
of measuring RF, at the end of the last century, attempts were made to use computer methods (Rozhkova et al., 1996 ab,
1998). This article presents the results of a critical evaluation of the computer method for measuring FR using the
author’s interactive computer program FUZIYA (Bolshakov, Rozhkova, 2013), which provides for the generation of variable
test images on a special display designed for the polarization method of separating the left and right channels of test
object presentation. The purpose of this study was to evaluate the accuracy and reproducibility of the measurement
results, as well as to test the effectiveness of the previously proposed method to programmatically provide objective
control of the binocular image break. The data obtained confirm the prospects of the approach used and make it possible
to clarify the specific forms of its rational application.
Key words:
binocular vision, fusion reserves, computer methods of measurement, objective control of fusion, standardization of
measurements
DOI: 10.31857/S0235009223030034
EDN: WQLBYL
Cite:
Bolshakov A. S., Vasilyeva N. N., Rozhkova G. I.
Obespechenie vosproizvodimosti i obektivnogo kontrolya pri kompyuternom izmerenii fuzionnykh rezervov
[Providing reproducibility and objective control in computer measurement of fusion reserves].
Sensornye sistemy [Sensory systems].
2023.
V. 37(3).
P. 218–234 (in Russian). doi: 10.31857/S0235009223030034
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