During 11 years and 9 months from March 1, 1975 to the end of December, 1987, postoperative maxillary cysts accompanied by ocular abnormalities were found in 7 patients. Close examination of their ocular abnormalities produced the following results.
1) The mean age at the time of our initial diagnosis of these 7 patients with postoperative maxillary cysts accompanied by ocular abnormalities was 49±7 years, and that of those with cysts but without ocular abnormalities was 41±10 years. The mean age was significantly higher in the former group.
2) The ocular abnormalities in the 7 patients consisted of exophthalmus in 4, impairment of the visual acuity in 2, superior excursion of the eyeballs in 6, disorder of the eye movement in 5, abnormality of the visuals field in 1, dacryorrhea in 6 and diplopia in 4.
3) The simultaneity of ocular symptom, disorder of the eye movement and diplopia was most frequent.
4) The operative findings indicated a bone defect of the size of a thumb ball on the orbital floor in all 7 patients.
