What you are explaining here seems like either a migraine-like issue related to eye, or it can be a normal functional change occurring in your eye due to high power of glasses. This needs to be thoroughly evaluated and corelated before a decision is made.
Next Steps
Meet an ophthalmologist and preferably where Retina evaluation is possible.
Health Tips
Do make a note of your symptoms and their nature whenever they occur in a diary.
Also try and find out if there's a triggering factor involved.