抄録
Twenty-one cases (22 eyes) with visual disturbance caused by the cysts of ethmoid and sphenoid sinuses were treated in our clinic from July 1975 to January 1988. The average age of the patient (12 males and 9 females) was 44.1 years old. Eighteen cases underwent surgical treatment of the paranasal sinuses. Pain in the eye was complained in 4 cases, swelling of the eyelid was noted in 4 cases, exophthalmos was found in 2 cases and no case complained of double vision. The examination of visual field of the flicker fusion threshold was done in 17 eyes, 4 eyes that indicated the CFF (critical flicker frequency) of 26 Hz in the minimum had good recovery but 3 of 13 eyes that indicated low frequency under 25 Hz did not recover. It is suggested that the cases outside low CFF under 25 Hz, without significant change of the fundus and no severe infection (mucocele or pyocele) and short period from onset of visual disturbance has good prognosis of visual acuity.
