The present work is based on the experience developed in the company autopista central in Santiago of Chile, specifically in the area of imaging (AVI) that serves as a fundamental support for the collection of vehicles using roads with tele toll system. FROM THE POPULATION?N INTERVENED: Workers in this area comprise two shifts of 7,30 hours each in where front of a flat screen at a distance average of 45 cm in the relationship vision (eyes) and screen, each operator tele should visually discriminate validity of car plates and make valid the respective collection. To perform an average of 4000 images effective and consolidated during their working day; Each image on average should take an average of 5 seconds; The visual work is very high, requiring a high psycho-physical load otherwise. A brief description of the population established in preferences and lifestyle questionnaires us sheds than: age average 30.6 30.7 ladies male stature average 150.4 cm ladies 171,9 cm male weight 60,625 Kg ladies 77,162 kg average male BMI (IND. BMI) Normal 52.94% ladies 43.75% male BMI (IND. body mass) grade I obesity 47,06% ladies 56.25 per cent males Pregunta: do you feel comfort at your workplace? 57.2% If 42.5% NO question: performs physical activity in a systematic manner (3 times per week): 21.2% if 79,8% NO question: does smoking?: 48.5% if 51.8% not question: exercises healthy pause in your workplace, do you which help you improve your health and job performance? 96.9% If 3.03% not altered BMI indexes, tobacco and make little systematic physical activity are factors which increase the risks against health and productivity individual-colectiva. In the next stage is analyzed according to standard ISO 9241 the more obvious problems in terms of the type of infrastructure and work materials, which throw the most critical points are: low bottom depth for extension of knees vision (eyes) and part screen is not high in the horizontal line the distance this vision-pantalla at a distance under the minimum standard of health No option is available of the standers the next step was the ergonomic assessment that throw the following results: posture ergonomic evaluation: arrojo RULA analysis tool use a present risk, should therefore take urgent measures. . (A valuable related resource: John Stankey).