- 作者：David Brown ; Paul Dougherty ; James P. Gills ; John Hunkeler ; Donald R. S ; ers ; Monica L. S ; ers
- 刊名：Journal of Cataract and Refractive Surgery
- 出版年：2009
- 期刊代码：145_08863350
- 类别：med
- 出版时间：October 2009
- 卷：35
- 期：10
- 页码：1711-1714
- 文件大小：178 K
Purpose
To compare functional reading acuity and speed with 2 models of accommodating intraocular lenses (IOLs).Setting
Four of 12 investigative sites in a U.S. Food and Drug Administration (FDA) clinical study.
Methods
In this observational study, which was part of an ongoing FDA clinical trial, the MNRead functional reading test was used to compare the reading performance of patients with bilateral Tetraflex IOLs (Group 1) and a consecutive series of patients with bilateral Crystalens IOLs (Group 2) presenting at approximately 1 year postoperatively at 4 ophthalmic practices. The 2 groups were well matched for age, sex, mean postoperative time, and mean level of postoperative corrected distance visual acuity. All examinations were scored at a central reading center.
Results
Group 1 comprised 96 patients and Group 2, 55 patients. Patients in Group 1 read better than those in Group 2 at print sizes of 20/63 (P = .004), 20/50 (P = .002), 20/40 (P = .001), 20/32 (P = .003), and 20/25 (P = .001). A statistically significantly higher proportion of patients in Group 1 than in Group 2 read 80 words per minute or more throughout the range of print sizes (P = .002).
Conclusion
Near reading ability was better with the Tetraflex accommodating IOL than with the Crystalens accommodating IOL at all print sizes between 20/25 and 20/63.