HUBUNGAN ANTARA UMUR DAN INTENSITAS CAHAYA LAS DENGAN KELELAHAN MATA PADA JURU LAS PT. X DI KABUPATEN GRESIK
Welding occurs much hazard especially toward welders eyestrain.The Objective of study was to analyzed relation between age and eyestrain and also weld luminous intensity and eyestrain at welders of tonic shower cap PT.X in District of Gresik.Research was carried out by cross sectional and observational study.Subjects were 20 welders of PT.X in Dist