Volume 32 #4

Contents

1. Threshold duration of sound signals for their sources approaching and withdrawing under condition of high-frequency hearing loss modeling
2. The nature of changes in impulse activity of neurons of hypothalamic supraoptic nucleus following prolonged exposure to vibration
3. Visual acuity of ophthalmologically healthy people and features of form the foveal pit of the retina
4. Characteristics of morphological development of the extreme retinal periphery near ora serrata
5. The effect of local diascleral stimulation of the extreme and middle peripheral parts of the retina on foveal contrast sensitivity and color recognition
6. Neural encoding mechanism of the symmetrical crosses in the visual system
7. Mapping of enclosed buildings using mobile radio tomography
8. Projectively invariant description of non-planar smooth figures. 2. On recognition of ovaloids of revolution

In forty ophthalmologically healthy volunteers (80 eyes) 19–28 years according to the optical coherence tomography (OCT), the description of the retinal thickness profile in the foveal pit of the retina (FP) was carried out by five points from its edge to the center along the vertical and horizontal meridian. Cluster analysis of these 80 profiles allowed to divide them into three typological groups, which differ in the thickness of the retina at each point of measurement. The typological groups of FP profiles differed by the average level of visual acuity (VA) – the significantly highest monocular VA occurred in optimal FP profiles, which generally have the greatest thickness and degree of its “deflection” from the edge to the center. All other factors – optical characteristics, laterality (right/left) and gender differences did not have a significant impact on the level of VA.

Key words: the profile thickness of the foveal pit, visual acuity

DOI: 10.1134/S0235009218040078

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