Causes and prevention of xerophthalmia in military pilots
Objective To find out about the current incidence of xerophthalmia in military pilots and analyze the causes.Methods A total of 660 military pilots who sought treatment at the 988th Hospital of the Logistic Support Force between March 2021 and January 2023 were selected as the subjects.A survey involving questionnaires about basic information,Ocular Surface Disease Index(OSDI)surveys,and ophthalmological examinations were conducted.Chi-square tests were used to analyze the factors contributing to xerophthalmia in military pilots,and factors with statistically significant differences were analyzed using binary logistic regression analysis.Results The results of OSDI showed that 45.45％(300/660)of the pilots had signs of dry eyes,including mild dry eye signs(81.67％,245/300),moderate dry eye signs(10.00％,30/300)and severe dry eye signs(8.33％,25/300).Based on diagnostic criteria for xerophthalmia,pilots diagnosed with xerophthalmia accounted for 8.94％(59/660).Logistic regression showed that the age ranged from 41 to 50 years(OR=3.089,P=0.010).Total flight time:＞1 500～2 500 h(OR=6.352,P=0.003),＞2 500～3 500 h(OR=4.626,P=0.010),＞3 500～5 000 h(OR=9.210,P＜0.001),＞5 000 h or more(OR=26.577,P=0.001).Frequent dry mouth during flight(OR=5.924,P=0.032),daily use of video display terminal＞4 h(OR=4.631,P=0.005)were the risk factors for dry eyes.And watching video display terminal＞1 h without resting eyes(OR=0.143,P＜0.001)was the protective factor for dry eyes.Conclusion The prevalence of xerophthalmia among military pilots is relatively high,suggesting the need to exercise more effective control over xerophthalmia as required by pilots in order to prevent the occurrence and progression of xerophthalmia.
XerophthalmiaInfluencing factorPreventive treatment of diseasePilots
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