Hello Prolonged working on laptop/TV/mobile can cause computer vision syndrome. Computer vision syndrome is a condition resulting from focusing the eyes on a computer or other display device for, uninterrupted periods of time. Some symptoms of cvs include a. Headaches b blurred vision c. Neck pain d redness in the eyes e. Eye strain f dry eyes sometimes watery eyes these symptoms can be further aggravated by improper lighting conditions. Measures to reduce this include 1. Work under proper light. 2. Blink a lot. 3. Cold compresses 4. Use good lubricating eyedrop

You may be suffering from computer vision syndrome U can try these steps 1. Reduce the screen brightness 2. Wear antiglare glasses,  check if u have glasses 3. Before u start the day infront of comp,  do warm up exercises for the eye..  Roll ur eyes in all directions and form an o,  next form a square,  then move the eyes up and down 5 times then move then side to side 4. Use a lubricating drop every 2hrs during working hours 5. Apply rule of 20- every 20min, take a break of 20sec and look 20ft away

Computer vision syndrome will need treatment as advised but rule out any refractive error.