荣成市是全国小城镇建设六个试点市之一。
Rongcheng city is one of the six city in whole country where an experiment little town building is made.
目的对荣成市进行眼病及盲目的流行病学调查。
Objective To study an epidemiological survey of eye disease and blindness in Rongcheng city.
方法采用整群随机抽样方法，抽取荣成市沿海地区8757名渔民为调查对象。
Methods The grouped random sampling rule survey was carried out in a sample population of 8757 who lived in seaside district of Rongcheng city.
方法采用整群随机抽样方法，抽取荣成市沿海地区8757名渔民为调查对象。
Methods The grouped random sampling rule survey was carried out in a sample population of 8757 who lived in seaside district of Rongcheng city.
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