用于矫正近视性人工晶状体眼屈光不正的负屈光度人工晶状体
Minus-power intraocular lenses to correct refractive errors in myopic pseudophakia.
作者信息
Gills J P, Fenzl R E
机构信息
St. Luke's Cataract and Laser Institute, Tarpon Springs, Florida, USA.
出版信息
J Cataract Refract Surg. 1999 Sep;25(9):1205-8. doi: 10.1016/s0886-3350(99)00163-7.
PURPOSE
To evaluate the effectiveness of a secondary, piggyback, minus-power intraocular lens (IOL) to correct the refractive error in patients with myopic pseudophakia.
METHODS
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.
RESULTS
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%.
CONCLUSION
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.
目的
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。
方法
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。
结果
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。
结论
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。
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