Currently Delhi NCR and many parts of northern India are experiencing very bad air quality due to severe air pollution. The AQI ( PM 2.5 AQI and PM 10 AQI)at many places in these regions is as high as 600 or even more. Severe air pollution leads to formation of dense smog in the lower strata of atmosphere which is actually a mixture of pollutant gases, smoke and fog. It not only leads to poor visibility in these areas, low penetration of sunlight but also causes many disease mainly respiratory illnesses.

Computer vision syndrome is also known as Digital eye strain which results because of prolonged use of computers, laptops, mobile phones and I pads. In today’s scenario, we cannot imagine our lives without these digital devices, however their prolonged use is associated with lots of problems.