- Edited
I'm not using any electronic lighting in my home office where I've been working for the last two years. And nothing has changed. There is a cathedral ceiling with a window behind me that lets some sunlight in. Most of the wall is behind closed vertical blinds but there is some light coming from the very top. But I don't think that's a cause. If it's raining and really dark I do have a desk lamp but I rarely turn it on except maybe at night and that's not when I'm working.
I have played with patching one eye just to see what happens, and yes, there is a great deal less pain. But, I can't work like that for any length of time nor would I even want to try and adapt to it. I did mention this to my eye doctor and asked if this means I have "binocular vision" or some similar ailment. He said everybody uses both eyes to create images and sometimes there are differences in perception but nothing is wrong with my eyes in that regard.