关键词: 铅, 视力, 立体视, 视觉诱发电位

Abstract: 【Objective】 To find out the influences of high blood lead level on visual acuity,stereoacuity,visual evoked potentials in children. 【Method】 172 children aged 4 to 10 were randomly selected and their serum concentration of lead were detected.They were divided into normal blood lead group and high blood lead group by the blood lead level. 【Results】 The difference of cases with abnormal corrected visual acuity between high blood lead group and normal blood lead group was statistically significant(P<0.01).P100 latency was significantly delayed and the difference of P100 latency and stereoacuity were statistically significant between two groups(P<0.05).P100 amplitudes did not differ significantly from the normal group(P>0.05). 【Conclusions】 High blood lead level has bad influence on visual acuity,stereoacuity,visual evoked potentials in children.More attention should be paid to the prevention of the lead pollution and the abnormal development of visual function.

Key words: lead, visual acuity, stereoacuity, visual evoked potential