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目的 :分析白内障手术前后网测值差异的可能原因。方法 :随机选择各型白内障患者 91例 (91眼 ) ,应用视力干涉仪——视网膜计 (Retionm etet) ,对 91例 (91眼 )白内障患者手术前后视功能情况进行检测 ,观察手术前后视网膜计测量值 (网测值 )变化情况。结果 :在 91例中有 12例晶体严重混浊 ,视网膜计无法测得确定值 ,术后 11例网测值有提高 (91.6 7% ) ;余 79例中 19例 (2 4.0 5 % )手术前后网测值结果一致 ,5 0例 (6 3.2 9% )术后网测值好于术前 ,10例 (12 .6 6 % )术后网测值比术前差。结论 :晶体混浊程度、形态、黄斑区病变以及检测程序不规范等是导致白内障患者手术前后网测值出现差异的原因。
OBJECTIVE: To analyze the possible causes of the difference in net measurement before and after cataract surgery. Methods: Ninety eyes (91 eyes) of cataract patients were randomly selected. The visual acuity of 91 eyes (91 eyes) before and after operation were measured by using the optometry interferometer - Retionm etet. Measurement (network measurement) changes. RESULTS: Twelve of the 91 patients had severe opacity and the retinal count could not be determined. The net value of 11 cases was improved after operation (91.6 7%), while the remaining 79 cases (19.5%) were preoperative and postoperative The results of the net measurements were consistent. The postoperative net values of 50 cases (6.32%) were better than preoperative values, and the net values of the 10 cases (12.66%) were lower than the preoperative values. CONCLUSION: The degree of opacity, morphology, macular degeneration and non-standard test procedures are the reasons for the difference in the measured values before and after cataract surgery.