远航海勤人员屈光不正性视疲劳原因调查分析

目的：了解远航海勤人员屈光不正情况及原因，为防治屈光不正提供科学依据。方法对486名水面舰艇人员和潜艇人员按年龄和持续远航天数各分为3个组，分析屈光不正检出率情况。结果486名海勤人员屈光不正检出率为31．5％（153/486），其中水面舰艇人员屈光不正检出率为29．5％（87/295），潜艇人员屈光不正检出率为34．6（66/191），两类海勤人员屈光不正检出率差异无统计学意义（χ2＝1．378，P＞0．05）。水面舰艇人员3个年龄组之间（χ2＝4．402，P＞0．05）及潜艇人员3个年龄组之间屈光不正检出率差异均无统计学意义（χ2＝3．076，P＞0．05）。水面舰艇人员各远航组之间（χ2＝27.03，P＜0．01）及潜艇人员各远航组之间（χ2＝18．74，P＜0．01）屈光不正检出率差异均有统计学意义。结论持续性长期远航容易引起屈光不正，应做好远航海勤人员视疲劳的防治工作。

Investigation and analysis on the cause of ametropic visual fatigue in the naval service personnel during prolonged deployment at sea

Objective To understand the situation and reason of ametropia in the navy service personnel during prolonged de -ployment at sea , and to provide scientific evidence for the prevention of ametropia .Methods In accordance with age and sustained de-ployment days , 486 naval surface vessel personnel and submariners were divided into 3 groups, and then the detection rate of ametropia was analyzed accordingly .Results The detection rate of ametropia among the 486 naval personnel was 31.5%（153/486）, of which the rate of ametropia for the surface vessel personnel was 29.5%（87/295）and that for the submariners was 34.6%（66/191）.No sta-tistical significance could be noted in the detection rate of ametropia , when comparisons were made between the 2 groups （χ2 =1.378, P〉0.05）.Statistical significance could neither be found in the detection rate of ametropia between the three age groups of the surface ship personnel （χ2 =4.402, P〉0.05） and the three age groups of the submariners （χ2 =3.812, P〉0.05）.However, statistical sig-nificance could be noted in the detection rate of ametropia between various prolonged deployment groups of surface vessels （χ2 =27.03, P〈0.01）and various prolonged deployment groups of submariners （χ2 =18.74,P〈0.01）.Conclusion Sustained deployment at sea could easily induce ametropia among navy service personnel , with this reason , attention should be paid to the prevention and treatment of visual fatigue during prolonged deployment at sea .