The Refraction Assessment and the Electronic Trial Frame Measurement during Standing or Sitting Position Can Affect Postural Stability

Vision has been shown to influence body posture. The purpose of this study is to investigate the correlations between visual acuity and body postural control both in a standing and seated position. This cohort study included 37 patients examined using Adaptica's (Italy) Kaleidos and VisionFit....

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Bibliographic Details
Published in:International journal of environmental research and public health 2022-01, Vol.19 (3), p.1558
Main Authors: Rossato, Massimo, Nart, Alessandra, Messina, Giuseppe, Favro, Francesco, Rossato, Valentina, Rrutja, Enxhi, Biancalana, Vincenzo
Format: Article
Language:English
Subjects:
Acuity
Binocular vision
Cohort Studies
Electronics
Environmental conditions
Head movement
Humans
Parameters
Position measurement
Postural Balance
Posture
Pupil size
Refraction
Sitting Position
Standing Position
Statistical analysis
Visual acuity
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Summary:Vision has been shown to influence body posture. The purpose of this study is to investigate the correlations between visual acuity and body postural control both in a standing and seated position. This cohort study included 37 patients examined using Adaptica's (Italy) Kaleidos and VisionFit. Objective refraction was measured with Kaleidos both in a standing and seated position by the same operator and in the same environmental conditions. The parameters obtained with the device were binocular refraction, monocular refraction, pupil distance, pupil size, head tilt, gaze, phorias, and tropias. The results obtained were then subjectively tested using VisionFit: an electronic trial frame with phoropter functionalities. The study's outcome revealed that the differences in the visual acuity parameters obtained in standing and seated positions were statistically significant; the Student's -test showed a -value < 0.001 in all parameter averages. Automated refraction is widely being performed and postural control can affect the visual acuity parameters; therefore, it is relevant to consider the possibility of measuring in orthostatism. It might be appropriate to take into account the possibility of measuring in orthostatism and wearing trial frames in orthostatic conditions as well as walking freely around the room, looking outside of a window, sitting, and reading.
ISSN:1660-4601
1661-7827
1660-4601
DOI:10.3390/ijerph19031558