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采用国际盲人登记标准对地氟病区及非氟区老年性白内障进行了盲目发病率的调查：结果显示，氟区发病率明显高于非氟区（Ｐ＜０．０１），氟区老年性白内障病人的血、尿、晶体含氟量明显高于非氟区老年性白内障病人（Ｐ＜０．０１），而氟区健康人的晶体含氟量又低于氟区病人。从以上的结果推测：地方性氟中毒可能是地氟病区老年性白内障形成和发病率较高的原因之一。
The blind incidence rate of ground-based fluorosis and non-fluorotic cataracts was investigated by international blind registration. The results showed that the incidence of fluoride was significantly higher than that of non-fluoride (P <0.01) The content of fluorine in blood, urine and crystal of cataract patients was significantly higher than that of non-fluorotic cataract patients (P <0.01), while the fluoride content in healthy people was lower than that in fluoride patients. The above results suggest that endemic fluorosis may be one of the reasons for the high incidence of senile cataract in the endemic fluorosis area.