Trade encourages specialisation, which brings prosperity; global capital markets, for all their problems, allocate money more efficiently than local ones; economic co-operation encourages confidence and enhances security. Yet despite its obvious benefits, the globalised economy is under threat.
RA (the most common disease cause) and Paget disease of the cervical spine can cause atlantoaxial dislocation or subluxation, basilar invagination, or platybasia. Metastatic tumors that affect bone can cause atlantoaxial dislocation or subluxation.
I would have it checked. It is unlikely to be the topamax, but you can have angle closure glaucoma induced from eye dilation. It is very rare (maybe 1 in a quarter million if that high) but it does happen. That usually makes people very sick with nausea and vomiting but it would be very unlikely in 5 minutes.