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Updated: Sep 14, 2025
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Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
Published on: March 29, 2022
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A new wearable device for supporting myopia epidemiology studies
Aleksandra Kościółek1, Aleksandra Fojcik1, Mateusz P Popek1
1Department of Biomedical Engineering, Wroclaw University of Science and Technology, Wroclaw, Poland.
Summary
A new wearable device accurately measures nearwork, crucial for understanding myopia progression. This low-cost device outperforms commercial options, providing reliable data for research and public health initiatives.
Area of Science:
- Ophthalmology and Vision Science
- Biomedical Engineering
- Public Health
Background:
- Myopia prevalence is rising globally, strongly linked to increased nearwork.
- Accurate measurement of nearwork is essential for myopia research but current wearable devices have limitations.
Purpose of the Study:
- To develop a low-cost, low-energy wearable device for nearwork measurement.
- To evaluate the device's accuracy against a commercial alternative.
- To simulate the impact of device accuracy on nearwork estimations.
Main Methods:
- Device accuracy was assessed at various nearwork distances.
- A Monte Carlo simulation used global media usage statistics.
- The impact of device accuracy on diopter-hours of nearwork was estimated.
Main Results:
- The proposed device exhibited superior performance with minimal, distance-independent errors (-3.20 to 1.50 cm).
- Compared to a commercial device with significant distance-dependent errors (up to 57 cm).
- Simulations showed the proposed device overestimated nearwork by 2.1% (0.5 Dh), while the commercial device underestimated by 7.1% (1.9 Dh).
Conclusions:
- The developed wearable device meets requirements for laboratory and epidemiological studies.
- It offers high, stable accuracy, surpassing commercial benchmarks.
- Accurate nearwork measurement is vital to avoid misinterpreting myopia risk factors.
