Gills J P, Fenzl R E
St. Luke's Cataract and Laser Institute, Tarpon Springs, Florida, USA.
J Cataract Refract Surg. 1999 Sep;25(9):1205-8. doi: 10.1016/s0886-3350(99)00163-7.
To evaluate the effectiveness of a secondary, piggyback, minus-power intraocular lens (IOL) to correct the refractive error in patients with myopic pseudophakia.
In this prospective noncomparative cohort study, 51 myopic pseudophakic patients received implantation of a minus-power IOL as a secondary procedure to correct residual pseudophakic myopia.
The mean residual myopia of -3.05 diopters (D) was reduced to -0.38 D. All eyes were within +/- 1.00 D of the desired refraction. Uncorrected visual acuity was 20/40 or better in 72% of eyes, and best corrected visual acuity was 20/40 or better in 96%. Uncorrected visual acuity improved by 2 or more lines in 85% of eyes and by 5 or more lines in 65%.
Clinical outcomes can now be improved in patients with myopic pseudophakia whose previous options (i.e., lens exchange or refractive surgery) were more traumatic or less predictable.
评估一种用于矫正近视性人工晶状体眼屈光不正的辅助性、背负式、负屈光度人工晶状体（IOL）的有效性。
在这项前瞻性非对照队列研究中，51例近视性人工晶状体眼患者接受了负屈光度人工晶状体植入术，作为矫正残余人工晶状体性近视的辅助手术。
平均残余近视度数从-3.05屈光度（D）降至-0.38 D。所有术眼的屈光度数均在预期屈光度的±1.00 D范围内。72%的术眼未矫正视力达到20/40或更好，96%的术眼最佳矫正视力达到20/40或更好。85%的术眼未矫正视力提高了2行或更多，65%的术眼提高了5行或更多。
对于那些之前的选择（即晶状体置换或屈光手术）创伤更大或可预测性更低的近视性人工晶状体眼患者，现在临床结局可以得到改善。
