Chances are that your vision is imbalanced
When eyes and brain try hard to compensate with each other due to vision problems then chances are that you get pain behind your eyes
The vision gets blurred most of the times but in some cases, the change is so little that it is hard to figure it out by yourself
This is another common reason for pain in the eyes
The eyes in such cases become sensitive to the light and the patient starts to experience a headache as well
Exposure to extreme blue light can also be a reason for dry eye syndrome
That usually happens when you spend hours in front of the computer, you can save your eyes by downloading a blue light reduction program like Iris.
In no time you will feel less eye pain and have a much better sleep quality