Rossetti L, Carraro F, Rovati M, Orzalesi N
Department of Ophthalmology, University of Milan, Italy.
J Cataract Refract Surg. 1994 Mar;20(2):124-8. doi: 10.1016/s0886-3350(13)80150-2.
In a prospective, randomized clinical trial, 42 patients received a monofocal intraocular lens and 38 a multifocal lens after extracapsular cataract extraction. Patients were examined three, six, and 12 months after surgery. Uncorrected visual acuity was 20/40 or better in 57% of monofocal and 58% of multifocal patients; 12% and 52% had near uncorrected visual acuity of J1 to J2, respectively. Best corrected visual acuities were not significantly different. Forty-eight percent of the multifocal and 8% of the monofocal group did not require spectacle correction. On a patient satisfaction questionnaire, 60% of all patients reported discomfort when using spectacles for near vision. Patients in the multifocal group were more satisfied with their near vision than those in the monofocal group. The difference in satisfaction was not significantly different although more multifocal patients reported visual phenomena (e.g., glare, halos). Mean contrast sensitivity for the monofocal group and the multifocal group was 1.73 and 1.70, respectively. At low contrast sensitivities, the difference was not significant although the monofocal patients scored better.
在一项前瞻性随机临床试验中，42例患者在白内障囊外摘除术后植入单焦点人工晶状体，38例患者植入多焦点人工晶状体。术后3个月、6个月和12个月对患者进行检查。单焦点患者中57%、多焦点患者中58%的未矫正视力达到20/40或更好；单焦点和多焦点患者中分别有12%和52%的近未矫正视力为J1至J2。最佳矫正视力无显著差异。多焦点组48%的患者和单焦点组8%的患者不需要眼镜矫正。在一份患者满意度调查问卷中，60%的患者表示在使用眼镜看近物时感到不适。多焦点组患者对其近视力的满意度高于单焦点组患者。尽管更多多焦点患者报告有视觉现象（如眩光、光晕），但满意度差异无统计学意义。单焦点组和多焦点组的平均对比敏感度分别为1.73和1.70。在低对比敏感度时，差异不显著，尽管单焦点患者得分更高。
