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目的探讨白内障术后早期对比敏感度(CSF)的变化。方法试验组为超声乳化白内障摘除联合折叠型人工晶状体(introcular lens,IOL)植入手术的老年性白内障术后患者105例(150眼),术后1个月用FACT对比敏感度测试仪进行CSF测定。与试验组年龄匹配的门诊患者84例(150眼)为正常对照组。双眼矫正视力均≥0.8。结果白内障术后患者CSF大致恢复到正常范围,但其值较正常对照组降低。三个年龄组昼及昼眩光状态低、中频(1.5、3、6cpd)白内障术后患者与正常对照组比较差异无显著性;高频(12、18cpd)比较差异有显著性(P<0.05),但70~79岁组在12cpd时无显著性差异(t=1.11、0.61,P>0.05)。三个年龄组夜及夜眩光状态低频(1.5、3cpd)白内障术后患者与正常对照组比较差异有显著性(P<0.05),但70~79岁组在3cpd时无显著性差异(t=0.80、0.38,P>0.05);6cpd比较各组差异无显著性。且不论白内障术后组还是正常对照组,CSF值随年龄增长均呈逐渐下降趋势。结论白内障摘除IOL植入可恢复患者的CSF,但尚未达到同龄人正常水平。IOL的设计原理对CSF的影响尚需进一步探讨。
Objective To investigate the changes of early contrast sensitivity (CSF) after cataract surgery. Methods 105 cases (150 eyes) of senile cataract patients undergoing phacoemulsification combined with intraocular lens implantation (IOL) underwent phacoemulsification. One month after surgery, FACT contrast sensitivity tester was used to perform CSF Determination. Eighty-four outpatients (150 eyes) matched with the experimental group were normal control group. Eyes corrected visual acuity ≥ 0.8. Results After cataract surgery, CSF returned to normal range, but its value was lower than that of normal control group. The daytime and daylight glare were low in the three age groups. No significant difference was found between the patients with intermediate frequency (1.5,3,6cpd) cataract surgery and normal control group. The high frequency (12,18cpd) showed significant difference (P <0.05) , But there was no significant difference between the age group of 70-79 at 12 cpd (t = 1.11,0.61, P> 0.05). There were significant differences between the three age groups at night and night glare after low-frequency (1.5,3 cpd) cataract surgery and normal controls (P <0.05), but there was no significant difference at 3 cpd in 70-79 age group (t = 0.80,0.38, P> 0.05); 6cpd no significant difference in each group. Regardless of the postoperative cataract group or the normal control group, the CSF value decreased gradually with age. Conclusions IOL implants can recover the CSF of patients after cataract extraction, but have not yet reached the normal level of their peers. The design principle of IOL on the impact of CSF needs to be further explored.