INDUSTRIAL HYGIENE. In the working world there are some especially high-risk professions involving potentially retina-damaging welding processes. Those most at risk are car workers, metalworkers and installers of air conditioning and heating systems. Although firms are bound under current legislation to equip their workers with the necessary protection against any harmful welding-torch radiation, the welders themselves often choose not to wear this protection because the overdark lenses balk their vision and make them prone to accidental burns or other working errors. They therefore prefer to weld without wearing any protection at all.

By CRISTINA BONNIN-ARIAS, EVA CHAMORRO-GUTIÉRREZ, GUILLERMO RAMÍREZ-MERCADO, LUIS-LUCIO LOBATO-RINCÓN, JUAN JOSÉ NAVARRO VALS and CELIA SÁNCHEZ-RAMOS.
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