Working in electronic factories with a high-pressure of time, working intensity and requirement of responsibility and accuracy was a workload affecting worker's health, especially visual functions. A descriptive cross-sectional study was carried out to assess some visual functions of workers in electronic manufacturing companies by using Visiotest Model 2000 Vision tester equipment. The results showed that in the chromatic vision test: 54.0 percent fight deficit, 3.7 percent chromato pseudopsis
in the horizontal squint test: 10.4 percent esophoria, 71.8 percent exophoria
in vertical squint test
23.3 percent left hyperphoria, 3.9 percent right hyperphoria
in the haploscopic vision test: 21.9 percent at medium level, 39.2 percent at lowlevel
in the E letter test: 5.2 percent at low level
in the combined binocular vision test: 3.7 percent at low level
in the balanced orthophoria test: 2.1 percent at low level.