I am undergoing some online coaching for competitive exams from 6 months. I always stay in front of laptop and mostly listen to video lectures and study soft copies. I am using ARC glasses (sight -0.5) and head phones. Up to now I did not pay attention to my health and now I am thinking of some precautions and preventive measures to protect my eyes and ears. It is not possible for me to give up coaching and it will continue for other 6 months. Please help in this regard. Thankyou.