0.1 improved significantly, while the eyesights of the other patients improved slightly or not at all. In the 53 cases of mass diseases,45 cases (84.9 %) required complete removal whereas 8 cases required bulk removal. No cases of sunken eyeball was found. Snuffle was improved in all cases. Most symptoms disappeared and no optic nerve injury resulted after the tumors in the orbital apex were removed. CONCLUSION Selecting the proper operative approach is important to the uncovering of the operative area. The use of navigation systems and endoscope could increase the rate of complete removals,result in fewer injuries of vessels and nerves,and avoid facial incision.

ObjectiveTo form a questionnaire of high reliability and validity on mate preferences of postgraduates in military academy. MethodsIn December 2020， full-time postgraduates of a military academy were randomly selected as research objects， and their mate preferences were investigated via a self-compiled open-ended questionnaire. The item screening and expert consultation were carried out to compile an initial questionnaire on mate preferences of the postgraduates in military academy， and the questionnaire survey was conducted on 89 postgraduates in the military academy. Then the item analysis and exploratory factor analysis were performed to test the questionnaire， and the reliability and validity of the questionnaire were tested by calculating Pearson correlation coefficient， Cronbach's α coefficients and split-half coefficient. ResultsThe questionnaire on mate preferences of postgraduates in military academy has been formed， which consisting of 4 factors （intrinsic quality， personal ability， external conditions and quality of life） and 25 items was formed. The correlation coefficient between the total score of the questionnaire and the score of each factor ranged from 0.739 to 0.864， Cronbach's α coefficient of total score and each factor ranged from 0.723 to 0.926， and the split-half coefficient was between 0.682 and 0.899. ConclusionThe compiled questionnaire on mate preferences of postgraduates in military academy has good credibility and validity， and can be used as a tool to collect the data of psychological marriage and love on the mate preferences of postgraduates in military academy.