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October 18, 2025BMJ Public HealthOpen Access

Association between near visual display device usage and the eye’s accommodation and vergence parameters: a cross-sectional study of high school children in Cape Coast, Ghana

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Authors

CDCharles Darko-TakyiTMT. MillsSBSamuel Bert Boadi‐Kusi

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Overview

Cross-sectional study reveals significant connection between NVDD usage and eye accommodation and vergence parameters in students, suggesting the need for better optometric guidance.

Key Points

  • Increased NVDD use correlates with worse measures of vergence and accommodation responses in students.
  • Notable metrics include a significant reduction in near point of convergence and accommodative amplitude due to longer device usage.
  • The study utilized reliable questionnaires from 326 high school participants to assess NVDD habits and visual functions.
  • Findings imply urgent consideration for vision therapy strategies to mitigate adverse effects from excessive NVDD use.

Cite This Study

Darko-Takyi et al. (2025) studied this question.

synapsesocial.com/papers/68f35bfc73f0a7d050f47f37https://doi.org/10.1136/bmjph-2025-003041
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Also Consider

Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Visual Fatigue Induced by Viewing a Tablet Computer with a High-resolution Display2017 · 139 citations
  2. 2Visual problems among video display terminal (VDT) users in Nepal2011 · 60 citations