方法：对参加健康体检的650例顺德区公安干警进行问卷调查，结合裂隙灯检查、泪液分泌试验、泪膜破裂时间及角结膜荧光染色检查确定诊断。观察干眼症的患病率、不同警种的干眼症患病率、不同年龄段干眼症患病率、干眼症患者自觉症状、以及干眼症的影响因素。

结果：公安干警650例中干眼症患者152例，患病率为23.4%，其中交警、巡警及内勤警患病情况明显高于治安警和刑警。40岁以上者患病情况高于40岁以下者。

结论：不良的工作环境、空气污染等是干眼症发生的高危因素。

METHODS:Totally 650 policemen who came for physical examination in Shunde district recived questionnaire survey. The patients with dye eye disease were finally diagnosed through slit lamp examination, Schirmer test, tear film break-up time(BUT)measurement and keratoconjunctival fluorescent staining. The morbidity among different policemen was further analyzed and stasticed.

RESULTS:The results showed that 152 in 650 policemen suffered from dry eye disease, the ratio was 23.4%. Comparied with security police and crimanl police, the ratio in traffic police, patrolman,and back office police was significantly higher. The prevalence was higher when the ages were greater than 40.

CONCLUSION: Unsuitable working environment, air contamination are high risk factors of dry eye disease.