RT Journal Article SR Electronic T1 Relation between colour vision loss and occupational styrene exposure JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 222 OP 222 DO 10.1136/oem.60.3.222 VO 60 IS 3 A1 Viaene, M K YR 2003 UL http://oem.bmj.com/content/60/3/222.abstract AB This commentary relates to the study by Gong et al, published in the December 2002 issue of this journal.1