摘要
目的:探讨闪光视觉诱发电位(flash visual evoked potentials,FVEP)在预测老年性白内障患者术后视力中的应用价值。方法:对43眼老年白内障患者进行了白内障囊外摘除及后房型人工晶体植入术,将术前FVEP、光定位、辨色力等检查结果与术后视力进行了对比研究。结果:患者术后视力与FVEP的振幅(X_1)、P_1波潜伏期(X_2)及辨色力之间存在有显著相关性(P<0.01),相关系数分别为:0.7277、-0.5678、0.4302;术后视力与光定位检查之间无显著性相关;术后视力(Y)与FVEP指标间的回归方程为:Y=0.2255+0.047X_1-0.0026X_2。结论:FVEP在白内障术前视功能判断方面是一种行之有效的检查方法,根据FVEP反应可预测患者术后视力。眼科学报2000;16:81-83。
Purpose: To study the using value of flash visual evoked potentials (FVEP) in predicting the resumed visual acuities in senile cataract patients.
Methods: Forty-three eyes with senile cataract had been conducted extracapsular cataract extraction combined with posterior chamber intraocular lens implantation. The contrast study had been carried out in this research between preoperative FVEP, light projection and color discrimination tests with the postoperative regained visual acuities. Results: There were significant correlations between the regained visual acuities and the amplitudes of FVEP (X1), the latencies of P1 wave (X2) as well as color discriminations ( P < 0. 01) . The coefficients were 0. 727 7, -0. 567 8 and 0. 430 2 in sequence. There was no correlation between the resumed visual acuities and the light projection test before operation. The formula of linear regression between the visual acuities (Y) and the indexes of FVEP was Y = 0. 225 5 + 0. 047X1 - 0. 002 6X2.
Conclusion: FVEP is an effective method to evaluate the visual function before the cataract operation. It may predict the resumed visual acuity. Eye Science 2000; 16: 81 - 83.
出处
《眼科学报》
2000年第2期81-83,共3页
Eye Science
关键词
老年性白内障
闪光视觉诱发电位
视力
senile cataract, flash visual evoked potential(FVEP), visual acuity
