Commentary on “A Study of Visual Function Quality Along with Static and Dynamic Visual Acuity in Commercial Bus Drivers of Chandigarh, Mohali, and Panchkula”

Doi: 10.36351/pjo.v42i1.2252

Abstract

I read with great interest the article by Sharma et al, investigating static and dynamic visual acuity (SVA and DVA) among professional bus drivers in the Tricity region of India.¹ The study adds valuable insight into occupational vision health, yet some gaps and methodological limitations merit discussion.

 First, while the cross-sectional design provides a snapshot of visual skills, it does not establish causal relationships between visual functions and driving performance. A longitudinal or interventional design could more effectively assess whether deficits in DVA or contrast sensitivity directly contribute to increased accident risk, as highlighted in previous systematic reviews linking vision impairment with crash likelihood