What question did this study set out to answer?

This pilot study aimed to assess the impact of air pollution on the ocular surface during bicycle commuting.

Real-Life Assessment of Multi-Pollutant Exposure and Its Impact on the Ocular Surface: The Bike-Eye Pilot Study on Urban Cyclists in Bologna

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Pilot study reveals significant links between air pollution exposure and ocular surface damage in cyclists, suggesting biomonitoring potential.

This pilot study aimed to assess the impact of air pollution on the ocular surface during bicycle commuting.
Fifteen healthy volunteers wore sensors measuring PM2.5 and PM10 during bike commutes for six months.
Exposure was calculated over ten days before an ophthalmologic exam assessing various ocular health indicators.
Tear samples were analyzed using scanning electron microscopy and energy-dispersive X-ray spectroscopy.
Higher pollutant exposure was significantly linked to conjunctival hyperemia and epithelial damage.
OSDI scores moderately correlated with PM levels.
Particulate matter was detected in tear samples, including carbonaceous material and sulfur compounds.

Clougher et al. (2025) studied this question.

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Pilot study reveals significant links between air pollution exposure and ocular surface damage in cyclists, suggesting biomonitoring potential.