摘要
目的 检测白内障眼术前视网膜功能。方法 对拟行白内障摘出术眼术前分别行暗适应F ERG时域分析法和M ERG频域分析法检查 ,比较白内障合并黄斑部视网膜病变 (黄斑变性、裂孔、出血 ,中心性脉络膜视网膜病变等 )眼、白内障合并周边视网膜病变 (高度近视视网膜格子样变性、通常型视网膜色素变性等 )眼与单纯白内障眼术前F ERG最大混合反应振幅、M ERGflicker 30Hz频谱间的差异。结果 白内障合并黄斑部视网膜病变眼术前F ERG最大混合反应a、b波振幅与单纯白内障组比较差异无显著性(P >0 0 5 ) ,而M ERGflicker 30Hz频谱比较 ,1环的差异有显著性 (P <0 .0 1) ;白内障眼合并周边视网膜病变组术前F ERG最大混合反应a、b波振幅与单纯白内障组比较差异有显著性 (P <0 0 1) ,而M ERGflicker 30Hz频谱比较 ,4～ 5环的差异有显著性 (P <0 0 1)。结论 F ERG时域分析法对白内障合并周边视网膜病变有一定的诊断作用 ,而M ERG频域分析法对白内障合并黄斑部视网膜病变的检测较F ERG敏感 ,F ERG、M ERG联合检测有助于更好地评价白内障眼术前视网膜功能。
Objective To detect the pre-operative cataractous retinal function. Methods We tested the scotopic F-ERG and M-ERG with the time- and the frequency-spectra-analysis respectively to the cataractous eyes, compared the differences of the amplitude of F-ERG and M-ERG existed between the cataractous peripheral retinal disease eyes group or the macula disease eyes group and the pure cataractous eyes group.Results Between the pure cataractous and the cataractous macula disease eyes group,there was no statistical difference(P>0.05)in the F-ERG MCR a、b wave amplitudes, but there was statistical difference(P<0.01) in the Ring 1 of the M-ERG flicker-30Hz frequency spectra; Between the pure cataractous eyes group and the cataractous peripheral retinal disease eyes group, there was statistical difference(P<0.01)in the F-ERG MCR a、b wave amplitudes,and there also was statistical difference(P<0.01)in their Ring 4～5 of the M-ERG flicker-30Hz frequency spectra.Conclusion The time-analysis of the F-ERG has certain diagnostic function to the cataractous peripheral retinal diseases, while the frequency-spectra-analysis of M-ERG will be more sensitive than F-ERG when detecting the cataractous macula diseases. Combined detection with F-ERG and M-ERG may be contribute to evaluate the retinal function before cataract surgery.
出处
《眼科新进展》
CAS
2004年第3期204-206,共3页
Recent Advances in Ophthalmology
基金
上海市医学领先专业特色专科科研基金资助 (No :982 0 14 )
关键词
视网膜电图
白内障
视功能评估
electroretinogram
cataract
retinal function evaluation
