Hi ..the reports are normal ..The shade light and dark doesn't mean anything medically
Next Steps
You don't need to wear these glasses while studying online as they are for distance vision.
what you can do is wear Blue filter glasses with no power in it. secondly do hot fomentation twice a day . Take break from the screen after 20 mins and look 20 feet away for 20 seconds.
Health Tips
if this doesn't help ask your doctor for a lubricating eye drops
The neck pain can be posture related.