Dana Center for Preventive Ophthalmology, Wilmer Eye Institute, Johns Hopkins University, Baltimore, USA.
Int J Epidemiol. 2010 Jun;39(3):877-88. doi: 10.1093/ije/dyp384. Epub 2010 Feb 9.
Ready-made spectacles (RMS) have advantages; however, visual performance and satisfaction has not been evaluated.
A 1-month, double-masked, randomized clinical trial comparing planned continued use and visual performance of RMS to Custom Spectacles (CS) in adults aged 18-45 years with > or =1 diopter (D) of uncorrected refractive error (URE).
A total of 373 of 400 participants (93%) completed; mean age was 30 +/- 9 years, and 58% were female. Average URE was 2.21 +/- 1.31D and habitual vision was 0.58 +/- 0.21 logMAR (logarithm of Minimum Angle of Resolution, 20/63(+1) Snellen acuity). Ten participants with habitual vision better than 20/40 were excluded (3%). A lower proportion in the RMS group intended to continue to wear the study spectacles after 1 month (165/183, 90% vs 174/180, 97%, P = 0.02). Spectacle vision in the eye with lower URE was 0.08 +/- 0.15 vs 0.02 +/- 0.08, P < 0.0001 and higher URE was 0.12 +/- 0.18 vs 0.02 +/- 0.08, P < 0.0001 (logMAR) for RMS and CS. Subgroup analyses excluding participants with astigmatism > or =2.00 D and anisometropia > or =1.00 D (74/363, 20%) found no difference in planned continued use (139/143, 97% vs 141/146, 97%, P = 1.0) for RMS vs CS.
While vision is slightly better with CS, 90% of an adult population with URE planned to continue to use their RMS at 1 month. Furthermore, if those without high astigmatism or anisometropia are excluded, virtually all are satisfied with RMS and there is no difference when compared with CS. The findings of this study support the use of RMS for the delivery of refractive services in settings where there is a high level of need, limited resources and low access to refractive services.
现成的眼镜（RMS）具有优势；然而，其视觉表现和满意度尚未得到评估。
一项为期 1 个月的、双盲、随机临床试验，比较了计划继续使用 RMS 和定制眼镜（CS）对年龄在 18-45 岁、未经矫正的屈光不正（URE）>或=1 屈光度的成年人的视觉表现。
共有 400 名参与者中的 373 名（93%）完成了研究；平均年龄为 30 +/- 9 岁，58%为女性。平均 URE 为 2.21 +/- 1.31D，习惯性视力为 0.58 +/- 0.21 logMAR（最小角分辨率的对数，20/63(+1) 视力表视力）。10 名习惯性视力优于 20/40 的参与者被排除在外（3%）。1 个月后，RMS 组中打算继续佩戴研究眼镜的比例较低（165/183，90%比 174/180，97%，P = 0.02）。在 URE 较低的眼睛中，RMS 和 CS 的视力分别为 0.08 +/- 0.15 和 0.02 +/- 0.08（P < 0.0001），而 URE 较高的眼睛中，RMS 和 CS 的视力分别为 0.12 +/- 0.18 和 0.02 +/- 0.08（P < 0.0001）（logMAR）。排除散光>或=2.00 D 和屈光参差>或=1.00 D 的参与者亚组分析（74/363，20%）发现，RMS 和 CS 之间在计划继续使用方面没有差异（139/143，97%比 141/146，97%，P = 1.0）。
尽管 CS 的视力稍好，但 URE 的成年人中有 90%计划在 1 个月后继续使用 RMS。此外，如果排除那些没有高度散光或屈光参差的人，几乎所有人都对 RMS 感到满意，与 CS 相比没有差异。这项研究的结果支持在高度需求、资源有限且屈光服务获取途径有限的环境中使用 RMS 提供屈光服务。
