Like "I don't know that it causes pain, but changing pressure in you eye may be a cause for pain and diabetes can be a contributing factor to that. What you might want to do is have your eyes examined to see what might be going on inside that you can't see. I just had my exam done and shared with the community how they can photograph your eye to see what is going on. Do you have blurry vision or floaters in you eyes? Those are signs of high sugar as well."