中华眼科杂志
中華眼科雜誌
중화안과잡지
Chinese Journal of Ophthalmology
2001年
2期
98-103
,共6页
吴德正%梁炯基%马娟妹%龙时先%江福钿%黄时洲%余敏忠%吴乐正%邓娟
吳德正%樑炯基%馬娟妹%龍時先%江福鈿%黃時洲%餘敏忠%吳樂正%鄧娟
오덕정%량형기%마연매%룡시선%강복전%황시주%여민충%오악정%산연
正常人%诱发电位%视觉%视网膜电图描记术
正常人%誘髮電位%視覺%視網膜電圖描記術
정상인%유발전위%시각%시망막전도묘기술
目的 检测我国正常人多焦视网膜电图(electroretinogram, ERG)的特征,以探讨其正常参考值。方法 应用VERIS 4.0视诱发反应图像系统检测42例(48只眼)正常人多焦ERG,检测对象年龄11~67岁,平均40.7岁。检测视野的水平视角为±26.6°,垂直视角为±22.1°,采用Burian-Allen接触镜电极,于8 min (分16段)记录103个视网膜部位的反应。结果 随被检测者年龄增长,多焦ERG的N1波和P1波潜伏期延长,<50岁与≥50岁年龄组间比较差异有显著性(t值均>2.01,P值均<0.05);N1波和P1波振幅密度降低,个体间变异较大,在中央凹N1波和P1波的振幅密度最大,分别为(44.88±13.30) nV/deg2、(70.90±17.77) nV/deg2;向周边振幅密度逐渐降低;N1波的上半视网膜的振幅总和较下半视网膜大,颞上N1波和P1波振幅密度和振幅总和均较鼻下的大。结论 多焦ERG能准确、客观地反映视网膜不同部位的功能,我们的研究结果将为临床提供正常参考值。
目的 檢測我國正常人多焦視網膜電圖(electroretinogram, ERG)的特徵,以探討其正常參攷值。方法 應用VERIS 4.0視誘髮反應圖像繫統檢測42例(48隻眼)正常人多焦ERG,檢測對象年齡11~67歲,平均40.7歲。檢測視野的水平視角為±26.6°,垂直視角為±22.1°,採用Burian-Allen接觸鏡電極,于8 min (分16段)記錄103箇視網膜部位的反應。結果 隨被檢測者年齡增長,多焦ERG的N1波和P1波潛伏期延長,<50歲與≥50歲年齡組間比較差異有顯著性(t值均>2.01,P值均<0.05);N1波和P1波振幅密度降低,箇體間變異較大,在中央凹N1波和P1波的振幅密度最大,分彆為(44.88±13.30) nV/deg2、(70.90±17.77) nV/deg2;嚮週邊振幅密度逐漸降低;N1波的上半視網膜的振幅總和較下半視網膜大,顳上N1波和P1波振幅密度和振幅總和均較鼻下的大。結論 多焦ERG能準確、客觀地反映視網膜不同部位的功能,我們的研究結果將為臨床提供正常參攷值。
목적 검측아국정상인다초시망막전도(electroretinogram, ERG)적특정,이탐토기정상삼고치。방법 응용VERIS 4.0시유발반응도상계통검측42례(48지안)정상인다초ERG,검측대상년령11~67세,평균40.7세。검측시야적수평시각위±26.6°,수직시각위±22.1°,채용Burian-Allen접촉경전겁,우8 min (분16단)기록103개시망막부위적반응。결과 수피검측자년령증장,다초ERG적N1파화P1파잠복기연장,<50세여≥50세년령조간비교차이유현저성(t치균>2.01,P치균<0.05);N1파화P1파진폭밀도강저,개체간변이교대,재중앙요N1파화P1파적진폭밀도최대,분별위(44.88±13.30) nV/deg2、(70.90±17.77) nV/deg2;향주변진폭밀도축점강저;N1파적상반시망막적진폭총화교하반시망막대,섭상N1파화P1파진폭밀도화진폭총화균교비하적대。결론 다초ERG능준학、객관지반영시망막불동부위적공능,아문적연구결과장위림상제공정상삼고치。
Objective To test the characteristics of multifocal ERG in normal Chinese subjects and to provide reference values in clinical application.Methods The multifocal ERGs by using VERIS 4.0 visual evoked response imaging system were tested for 42 subjects (48 eyes). Their ages ranged from 11 to 67 years (mean, 40.7 years). The stimulative visual angles subtended ±26.6° horizontally and ±22.1° vertically. Burian-Allen contact lens electrode was used to record the responses from 103 retinal locations in 8 min (16 segments). Results With age increasing, the latencies of N1 wave and P1 wave delayed, there were statistically significant differences of the latencies between <50 year group and ≥50 year group (t>2.01,P<0.05), and the amplitude densifies of N1 wave and P1 wave decreased with wide inter-individual variation. The amplitude densities of N1 wave and P1 wave were greatest at the central fovea, they were (44.88±13.30) nV/deg2, (70.90±17.77) nV/deg2 respectively, the densities reducing towards more peripheral location. The amplitude sum of N1 wave at the upper retina were greater than that at the lower retina, and the amplitude densities and sums of N1 wave and P1 wave at superior-temporal quadrant were greater than that at inferior-nasal quadrant. Conclusion Our results suggest multifocal ERG be able to reflect the visual function at different retinal locations correctly and objectively and provide normal reference limits.