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.
Present in both eyelids. 1  Medical complications. One example is myasthenia gravis, a neuromuscular disorder that affects the muscles around the eye and the nerves that control them. 2  The natural aging process. 3  Normal variation in the eyelids.