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Updated: Mar 22, 2026
07:06
Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
Published on: March 29, 2022
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Relationship between Reduced Accommodative Lag and Myopia Progression.
Nana Yaa Koomson1, Angela Ofeibea Amedo, Collins Opoku-Baah
1*OD, MS †OD, PhD ‡OD Department of Optometry and Visual Science, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana (NYK, AOA, PBA, EA, KB); Department of Psychological Sciences, Vanderbilt University, Nashville, TN (CO-B).
Summary
This study found no link between accommodative lag and myopia progression in Ghanaian children wearing undercorrected or fully corrected lenses. Ethnic differences may influence responses to hyperopic blur.
Area of Science:
- Ophthalmology
- Pediatric Optometry
- Myopia Research
Background:
- Myopia is a growing public health concern globally.
- Understanding factors influencing myopia progression is crucial for effective intervention.
- Accommodative lag, a potential risk factor, requires further investigation.
Purpose of the Study:
- To investigate the relationship between accommodative lag and the rate of myopia progression.
- To compare myopia progression in Ghanaian children using single vision lenses with full correction versus undercorrection.
Main Methods:
- A 2-year randomized control trial involving 150 myopic Ghanaian children (aged 10-15).
- Participants were assigned to full correction (FC) or +0.50D undercorrection (UC) single vision lenses.
- Refractive error and accommodative response were measured using Open-Field Autorefractor; ocular biometry used A-Scan ultrasonography.
Main Results:
- No significant difference in mean myopia progression between the FC (-0.54D) and UC (-0.50D) groups after 24 months (p=0.31).
- No significant difference in initial versus average near lag of accommodation in either group.
- No significant correlation found between refractive change and initial or average near lag in either group.
Conclusions:
- Accommodative lag does not appear to be related to the rate of myopia progression in this cohort of children.
- Ethnic variations may influence how different groups respond to hyperopic blur, a key factor in myopia development.
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