摘要
17例(19只眼)因玻璃体混浊,眼底窥不见,作了玻璃体切割,术前视力:光感～0.1,术后视力::0.03—0.9。19只眼术前均作了 ERG检查,5只眼作了术后 ERG 复查。对术前ERG b 波振幅与术后视力的关系进行统计学分析,结果表明:术前暗视亮光 ERG b 波振幅与术后视力呈正相关(r=0.7709,P<0.01),术前明视 ERG b 波振幅与术后视力呈正相关(r=0.8086,P<0.01),说明术前 ERG b 波振幅越高,术后视力改善越好。因而,术前 ERG 可估价玻璃体混浊,视力极差的各类眼病作玻璃体切割术后的效果。
Vitrectomy was performed on 17 pa-tients [19 eyes] who had dense vitreal opacity and precluding inspection of the ocular fundus.The pre- operative visual acuity was light perception to 0.1,the postoperative visual acuity was 0.03 to 0.9.The preoperative electroretinogram [ERG] was tested on all patients.The correlation of the amplitudes of the ERG b-wave to the postoperative visual acuities were statistically analysed.The results showed that there was positive correlation of the amplitude of the preoperative scotopic bright ERG b-wave to po-stoperative visual acuity [r=0.7709,p<0.01],and po-sitive correlation of the amplitude of the preoperati-ve photopic ERG b-wave to the visual acuity [r=
0.8086,p<0.01].It suggests that the bigger amplitude of the preoperative ERG b-wave was,the better po-stoperative visual acuity was improved.Thus,the preoprative ERG could predict the outcome of vi-trectomy in various ocular diseases with vitreal opa-cities and very low visual acuity.
出处
《眼科学报》
1989年第3期105-109,共5页
Eye Science
