Dry eye syndrome risk factors, assessment, and prevention

Dry eye syndrome in the workplace is associated with new ways of working, with increasing use of electronic screens and devices and environmental conditions arising in modern office, office and other environment designs. They also influence occupational exposures to ionizing radiation, chemicals or environmental dust, with increased dryness of the eye. 

The study of the pathophysiological aspects and labor causes of dry eye syndrome should be a coordinated task between occupational health, public health and those responsible for the National Health System, aimed at more effective primary and secondary preventive actions and a correct diagnosis, control and monitoring of the illness. 

Increased knowledge of occupational hazards and agreed and coordinated actions among occupational doctors, prevention workers, primary care physicians and specialties involved, such as ophthalmology, will allow to obtain results, both more effective and earlier, and optimize available resources. 

There are multiple occupational risk factors involved in the SOS but, without a doubt, the most studied are those related to the work done with PVD and in offices. To know and better understand the aspects involved in this area, it is necessary to combine industrial hygiene approaches, based on indoor air quality, occupational health approaches and ophthalmology support. 

Together with the actual occupational factors, such as thermal factors (low relative humidity, high temperature) and requirements related to the task performed (excessive attention decreases the blinking and widens the exposed eye surface), the individual characteristics of each worker (such as dysfunction of the gland, the use of contact lenses, age, gender and the use of certain medications) who, acting together, can cause these eye discomforts due to alteration of the precorneal tear film (PTF).  

Also, exposure to some irritating chemical compounds and oxidation mixtures that are formed in the reactions between ozone and unsaturated organic compounds (alkenes) causes PTF alteration, and this effect can be exacerbated by low relative humidity in the air 

Also, exposure to some irritating chemical compounds and oxidation mixtures that are formed in the reactions between ozone and unsaturated organic compounds (alkenes) causes PTF alteration, and this effect can be exacerbated by low relative humidity in the air.  

Strong sensory irritant contaminants cause dry eyes due to trigeminal stimulation. Also, exposure to some irritating chemical compounds and oxidation mixtures that are formed in the reactions between ozone and unsaturated organic compounds (alkenes) causes PTF alteration, and this effect can be exacerbated by low relative humidity in the air.  

Strong sensory irritant contaminants cause dry eyes due to trigeminal stimulation. Also, exposure to some irritating chemical compounds and oxidation mixtures that are formed in the reactions between ozone and unsaturated organic compounds (alkenes) causes PTF alteration, and this effect can be exacerbated by low relative humidity in the air. 

From a preventive point of view, the place of work, the thermal conditions, the rhythm of the task and the working day must be planned in such a way that they allow an adequate frequency of blinking and the realization of short and repeated breaks during the day, to minimize Alterations of the precorneal tear film. 

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