Mayo Clinic Health System, Eau Claire, WI, USA.
Department of Ophthalmology and Visual Sciences, Medical College of Wisconsin, Milwaukee, WI, USA.
Eye (Lond). 2019 Jul;33(7):1104-1110. doi: 10.1038/s41433-019-0372-8. Epub 2019 Feb 21.
We evaluated the Runge card, a near-vision eye chart designed for ease of use, by testing agreement in visual acuity results between it and the Early Treatment Diabetic Retinopathy Study (ETDRS) visual acuity chart. As a clinical reference point, we compared the Runge card and an electronic Snellen chart with respect to agreement with ETDRS results.
Participants consisted of adult eye clinic patient volunteers who underwent a protocol refraction, followed by testing with a Runge card, ETDRS chart, and Snellen chart. Mean logMAR visual acuities were calculated for each method. Agreement levels among the tests were assessed for the group overall and for subjects with good (ETDRS logMAR < 0.6; better than 20/80 Snellen equivalent) and poor (logMAR ≥ 0.6) acuity.
One hundred and thirty-eight participants completed testing. The mean ( ± standard deviation) logMAR visual acuities (Snellen equivalent) with Runge, ETDRS, and Snellen, respectively, were 0.66 ± 0.50 (20/91, n = 138), 0.59 ± 0.51 (20/78, n = 138), and 0.67 ± 0.62 (20/94, n = 137). Runge testing agreed similarly with ETDRS and Snellen testing, with CCC 0.92 between Runge and ETDRS, and 0.87 between Runge and Snellen (p = 0.14). Runge agreed better with ETDRS than Snellen agreed with ETDRS in participants with poor acuity (CCC = 0.79 vs. 0.63, respectively, p = 0.001) but not in those with good acuity (CCC = 0.70 vs. 0.87, respectively, p = 0.005).
Visual acuity measurements with the Runge near card agreed with measurements from the ETDRS to approximately the same degree as did the Snellen chart, suggesting potential utility of the Runge near card, particularly given its user-friendly characteristics and ease of use.
我们评估了朗格近视力表，这是一种设计用于方便使用的视力表，通过测试其与早期糖尿病视网膜病变研究（ETDRS）视力表在视力结果上的一致性。作为临床参考点，我们比较了朗格卡和电子 Snellen 图表在与 ETDRS 结果的一致性方面。
参与者包括接受协议验光的成年眼科诊所患者志愿者，然后用朗格卡、ETDRS 图表和 Snellen 图表进行测试。为每个方法计算平均 logMAR 视力。评估了测试之间的一致性水平，包括整个组和视力良好（ETDRS logMAR <0.6；优于 20/80 Snellen 等效）和视力差（logMAR ≥0.6）的受试者。
138 名参与者完成了测试。朗格、ETDRS 和 Snellen 的平均（ ± 标准差）logMAR 视力（Snellen 等效）分别为 0.66 ± 0.50（20/91，n = 138）、0.59 ± 0.51（20/78，n = 138）和 0.67 ± 0.62（20/94，n = 137）。朗格测试与 ETDRS 和 Snellen 测试的一致性相似，朗格与 ETDRS 的 CCC 为 0.92，朗格与 Snellen 的 CCC 为 0.87（p = 0.14）。在视力差的受试者中，朗格与 ETDRS 的一致性优于 Snellen 与 ETDRS 的一致性（CCC = 0.79 与 0.63，分别，p = 0.001），但在视力好的受试者中并非如此（CCC = 0.70 与 0.87，分别，p = 0.005）。
朗格近视力表的视力测量结果与 ETDRS 的测量结果大致相同，与 Snellen 图表的测量结果相同，这表明朗格近视力表具有潜在的实用性，尤其是考虑到其用户友好的特点和易用性。
