4. Pollutants
Many cities around the world have poor air quality and are seriously affected by pollution.
The result of this problem includes respiratory problems and eye infections. Children and the elderly are particularly vulnerable to these problems. The smog in the air enters the eye and creates an irritation that may cause redness and watery discharge.
In serious cases, contact with certain acids may create permanent eye disorders. While many cities in developed countries don’t have dangerously high levels of pollutants, it is important to be aware of the ways in which smog and other pollutants can affect your eyes and to take precautions.