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Thondar Product

Research suggests that peripheral retinal defocus is associated with ocular growth and myopia development. However, peripheral defocus has traditionally been difficult to quantify in routine clinical practice.

Based on Multispectral Refraction Topography (MRT) technology, MRT 3000 is an advanced device designed to measure both central and peripheral refraction of the human eye. The device provides quantitativerefraction data and defocus characteristics, supporting clinicians in myopia management.



Objective Peripheral Refraction Data to Support Myopia Management

Fully Automated Peripheral Refraction Measurement

Autorefractor-MRT 3000
What is MRT 3000?

Key Features


Fully Automated
Operation
One-shot acquisition with
voice-guided measurement
process for improved patient
cooperation.

High-Resolution
Peripheral Measurement
Captures 60° field of view with
up to 1 million measurement
points.

Comprehensive Defocus
Visualization
Automatically analyzes and
visualizes multi-dimensional
defocus patterns after
measurement.

Measurement Outputs


Myopic/Hyperopic Dot Map
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Refractive-Contour
Population Percentile

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Defocus-Correction

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The data cover central refraction together with relative peripheral refraction across multiple angles and ranges.

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Practice Value



  • Supporting Myopia Assessment and Outcome Evaluation

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Identification of peripheral refractive patterns that may be associated with myopia development, supporting earlier clinical observation and follow-up planning. Comparison of peripheral refractive patterns before and after myopia management, supporting objective follow-up and outcome assessment.

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Published clinical literature has explored Individualized Ocular Refraction Customized (I.O.R.C.) spectacle lenses design approaches in myopia management.


1.Lei S, Wu Y, Kou J, Chen Q, Liu L. The effect of individualized ocular refraction customized spectacle lenses on myopia control in schoolchildren: A 1-year randomised clinical trial. Ophthalmic Physiol Opt. 2024;44(6):1279-1289. doi:10.1111/opo.13354.

2.Kou J, Wu Y, Lei S, Xiong L, Chen X, Liu L. Myopia control efficacy of individualised ocular refraction customisation spectacle lenses: A 2-year follow-up study. Ophthalmic Physiol Opt. 2025;45(7):1882-1893. doi:10.1111/opo.70002.



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MRT Applications



  • Supporting Personalized Myopia Management Solution
MRT 3000 provides objective peripheral refraction data that may support a more informed optical design process, including Individualized Ocular Refraction Customized (I.O.R.C.) solutions.