Okay, I think there are a couple of possibilities that could represent why you're having these symptoms. I think the first, and most likely, is that you are experiencing an accommodative spasm. When we do a significant amount of near-work or focusing at near targets such a textbook, electronics, or a computer screen, the muscles that focus the lens inside the eye to allow for that clear vision have to work overtime. In someone such as yourself that is doing near activities for double-digit hours in a day, it can cause these accommodative muscles to spasm and lead to blurry vision up close and far away, even in the glasses, as well as headaches. I think this is the most likely cause with you. However, both the only way to know this for sure, and also to treat it, is to see your ophthalmologist to get a dilated eye exam. At this visit, other causes (such as the second thing I think this may be) can be ruled out as causing these symptoms, and the dilation of the pupils usually succeeds in breaking this accommodative spasm and the patient does much better after this. The other thing this may be is...
It's possible that your eyes have changed shape enough over the past six months that your glasses prescription is no different enough that your vision is not corrected adequately and therefore you're struggling. Again, though, a visit to your ophthalmologist will help determine whether this is the case, or whether you are having an accommodative spasm. While it seems to be a pain in the rumpus on the surface, I think your best bet here is to see the ophthalmologist. Does all this make sense?
My pleasure.Do you have any other concerns or questions about this topic?
Okay. Good luck!
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