Frequency of color blindness in pre-employment screening in a tertiary health care center in Pakistan

Objective: to describe the frequency of color vision deficiency among pakistani adults presenting for pre-employment health screening in a tertiary care hospital. methods: the cross-sectional study was carried out at the aga khan university hospital,karachi,and the data was collected for color vision deficiency,age,gender,and job applied for from pre-employment examination during 2013-2014. ibm spss 20 was used for statistical analysis. results: three thousand four hundred and thirty seven persons underwent pre-employment screening during 2013 and 2014; 1837 (53.44%) were males and 1600 (46.65%) females. the mean age was 29.01 (±6.53) years. a total of 0.9% (32/3437) persons had color vision deficiency with male being 1.4% and female 0.4%. conclusion: color vision deficiency was observed in 0.9% of candidates screened for pre-employment health check up in a tertiary care hospital. the color vision deficiency was predominantly present in male individuals. © 2017,professional medical publications. all rights reserved.