Thanks for writing to us.
These is common problem seen among the computer user. Its called computer vision syndrome
. It is due focusing on computer screen for long time. All you need is to take frequent breaks from computer screen. Its called 20-20-20 rule. Try to focus every 20 min on a distant object about 20 feets away for 20 min. or otherwise close your eyes every 20 min for 20 seconds.