Three Cases of Cysts in the Posterior Paranasal Sirius with Visual Disturbance

Three cases of cysts in the posterior paranasal sinus that caused disturbance of the eyes were reported.The first case was a man, aged 54, complaining of right visual disturbance and continuous frontal headache.The patient recovered completely from headache but not from the disturbance of visual acuity and visual field after the operation.The second case, a man, aged 35, complained of severe headache and right visual disturbance. The patient recovered in 5 weeks by the established drainage of the sphenoidal sinus.The third case was a man, aged 37, complaining of a severe throbbing headache, left-sided ptosis and the disturbance of left-ocular movement caused by oculomotor paresis. This case had no significant past history such as trauma or sinus operation. Two weeks after the appearance of double vision, ethomoidectomy and sphenoidectomy were performed. Headache disappeared the next day, and oculomotor paresis on the left side was well alleviated 16 days later.