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. 1984 May;68(5):347-9.
doi: 10.1136/bjo.68.5.347.

Pterygium in welders

I Karai, S Horiguchi

Pterygium in welders

I Karai et al. Br J Ophthalmol. 1984 May.

Abstract

Pterygium is thought to be hyperaemia of fibrovascular tissue on to the cornea caused by ultraviolet radiation of sunlight. We observed a significantly high incidence of pterygia in welders who were exposed occupationally to excess ultraviolet radiation and found a close relationship between the incidence and the length of employment as a welder (r = 0.975, p less than 0.05). This study attempts to clarify the causative relationship between ultraviolet radiation and pterygia.

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