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[Eye diseases in welders: a longitudinal study].

R Narda¹, N Magnavita, A Sacco

¹Istituto di Medicina del Lavoro, Università Cattolica del Sacro Cuore, Roma.

La Medicina Del Lavoro

|September 1, 1990

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Arc welders in a foundry experienced significantly higher rates of chronic conjunctivitis, with nearly half affected. Early ocular symptoms like burning and tearing can predict the condition, highlighting the need for workplace environmental checks.

Area of Science:

Occupational Health
Ophthalmology
Environmental Science

Background:

Chronic conjunctivitis is a concern in industrial settings.
Foundries present unique occupational hazards due to airborne particulates.

Purpose of the Study:

To investigate the incidence and risk factors of chronic conjunctivitis in arc welders.
To assess the relationship between airborne dust exposure and ocular health outcomes.

Main Methods:

A longitudinal follow-up study conducted from 1979 to 1989.
Comparison of arc welders in an Italian foundry with unexposed control groups.
Monitoring of airborne dust concentrations against Threshold Limit Value-Time-Weighted Average (TLV-TWA) standards.

Main Results:

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The frequency of chronic conjunctivitis was 4.25 times higher in welders than controls.
Incidence rate was 49.8% in exposed welders; manual welders had a higher rate (56.9%).
Ocular symptoms like eye burning, tearing, and photophobia predicted conjunctivitis with 61.5% accuracy.

Conclusions:

Arc welding in environments with high airborne dust concentrations significantly increases the risk of chronic conjunctivitis.
Early identification of ocular symptoms is crucial for timely intervention and environmental assessment.
Occupational health practices should prioritize workplace monitoring and welder eye protection.