Since you are a regular computer and tv/mobile user,Hence it might be computer vision syndrome so please put lubricant eye drops e.g. teardrop 3to4 times daily and rub ocupol dx eye oint to be rubbed twice daily on lids
Next Steps
Follow 20.20.formula ie close your eyes for 20 seconds after every 20 minutes. keep proper distance between eyes and screen ie approx 20 inches. wash your eyes with freshwater frequently. And don't sit facing towards ac or blowers and do cold compresses with ice and consume lot of fresh fruit and vegetables.