Reading performance after implantation of a small-aperture corneal inlay for the surgical correction of presbyopia: Two-year follow-up
Reading performance after implantation of a small-aperture corneal inlay for the surgical correction of presbyopia: Two-year follow-up
复制标题
DOI：
10.1016/j.jcrs.2010.10.044
复制
发表时间：
2011-03-01
影响因子：
2.8
通讯作者：
Grabner, Guenther
中科院分区：
文献类型：
--
作者：
Dexl, Alois K.;Seyeddain, Orang;Grabner, Guenther
目得：为了评估Kamra小孔径角膜内嵌体植入后2年随访中阅读性能参数的变化，设置：大学眼科诊所，Paracelsus医科大学，萨尔茨堡，奥地利。设计：队列研究。双侧阅读敏锐度、阅读距离、阅读速度和最小对数标度句子在标准化测试程序中使用Salzburg阅读台进行评估。最短术后随访时间为24个月。阅读台结果显示，每个测试参数都有显著改善。平均随访24.2个月± 0.8（SD）后，平均阅读距离从术前值48.1 ± 5.5 cm变为38.9 ± 6.3 cm（P < .0001），最佳距离的平均阅读敏锐度从0.3 +/- 0.14 logRAD改善至0.24 +/- 0.11 logRAD（P < .000001），平均阅读速度从每分钟142 +/- 13字（wpm）增加到149 +/- 17 wpm（P = .029）。1例患者丢失1行，1例患者无变化。在其他30例patients.CONCLUSIONS：植入后的小孔径角膜内嵌体，改善了6个对数刻度线（平均改善2.7 +/- 1.6线），有一个改善，在所有测试阅读性能参数正视老花眼患者的改善是由于增加景深。这些2年的结果表明，嵌体是一种有效的治疗老视。
PURPOSE: To evaluate the change in reading-performance parameters after implantation of the Kamra small-aperture intracorneal inlay over a 2-year follow-up.SETTING: University Eye Clinic, Paracelsus Medical University, Salzburg, Austria.DESIGN: Cohort study.METHODS: This study comprised naturally emmetropic presbyopic patients. Bilateral reading acuity, reading distance, reading speed, and the smallest log-scaled sentence were evaluated in a standardized testing procedure using the Salzburg Reading Desk. The minimum postoperative follow-up was 24 months.RESULTS: The study enrolled 32 patients. The reading desk results showed a significant improvement in each parameter tested. After a mean follow-up of 24.2 months +/- 0.8 (SD), the mean reading distance changed from the preoperative value of 48.1 +/- 5.5 cm to 38.9 +/- 6.3 cm (P < .0001), the mean reading acuity at best distance improved from 0.3 +/- 0.14 logRAD to 0.24 +/- 0.11 logRAD (P < .000001), and the mean reading speed increased from 142 +/- 13 words per minute (wpm) to 149 +/- 17 wpm (P = .029). One patient lost 1 line, and 1 patient had no change. The improvement was up to 6 log-scaled lines (mean improvement 2.7 +/- 1.6 lines) in the other 30 patients.CONCLUSIONS: After implantation of the small-aperture intracorneal inlay, there was an improvement in all tested reading performance parameters in emmetropic presbyopic patients; the improvement was the result of an increased depth of field. These 2-year results indicate that the inlay is an effective treatment for presbyopia.