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Related Experiment Video

Updated: May 20, 2026

Inducement and Evaluation of a Murine Model of Experimental Myopia

Inducement and Evaluation of a Murine Model of Experimental Myopia

Published on: January 22, 2019

[Accomodation tonus in myopia and its potential prognostic value].

E P Tarutta, N A Tarasova

Vestnik Oftalmologii

|July 28, 2012

Summary

High accommodative tonus, including habitual accommodative tonus (HAT) and accommodative rest tonus (ART), is linked to myopia progression. Dynamic refraction revealed "negative" accommodation, offering new insights into myopia development.

Area of Science:

Ophthalmology
Optometry
Vision Science

Context:

Myopia, a common refractive error, affects a significant portion of the global population.
Understanding accommodative tonus is crucial for myopia management and research.
Previous studies have explored accommodative tonus, but dynamic measurements in open fields offer novel perspectives.

Purpose:

To investigate the relationship between habitual accommodative tonus (HAT) and accommodative rest tonus (ART) and myopia progression.
To measure dynamic refraction using an open-field autorefractometer and assess accommodative tonus.
To confirm the phenomenon of 'negative' accommodation in patients with myopia.

Summary:

Sixty patients with varying myopia degrees were studied for HAT and ART using standard and open-field autorefractometry.

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Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher

Published on: February 23, 2018

Related Experiment Videos

Last Updated: May 20, 2026

Inducement and Evaluation of a Murine Model of Experimental Myopia

Inducement and Evaluation of a Murine Model of Experimental Myopia

Published on: January 22, 2019

Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes

Quantification of Oculomotor Responses and Accommodation Through Instrumentation and Analysis Toolboxes

Published on: March 3, 2023

Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher

Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher

Published on: February 23, 2018

ART was found to be maximal (-0.87 +/- 0.08 dpt), while HAT in an open field (HAT-OF) was minimal (-0.15 +/- 0.04 dpt).

Higher HAT and ART values correlated with increased myopia progression rates, and dynamic refraction confirmed 'negative' accommodation.

Impact:

This study provides novel evidence linking accommodative tonus to myopia progression.
The confirmation of 'negative' accommodation using dynamic refraction opens new avenues for research.
Findings may inform the development of more effective myopia control strategies.