Intermittent superior oblique tendon sheath syndrome. A case report.

A 37-year-old married woman who had been suffering from rheumatoid arthritis for I 7 years was first seen in March, I967, complaining of intermittent diplopia for one month. When seen by the casualty officer she was found to have vertical diplopia in laevo-elevation, but surprisingly a Hess screen chart plotted the next day (Fig.