Medical College of Wisconsin
CTSICores SearchResearch InformaticsREDCap

An innovative visual acuity chart for urgent and primary care settings: validation of the Runge near vision card. Eye (Lond) 2019 07;33(7):1104-1110

Date

02/23/2019

Pubmed ID

30792525

Pubmed Central ID

PMC6707193

DOI

10.1038/s41433-019-0372-8

Scopus ID

2-s2.0-85068856000

Abstract

OBJECTIVE: 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.

METHODS: 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.

RESULTS: 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).

CONCLUSION: 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.

Author List

Cooke MD, Winter PA, McKenney KC, Packard KL, Williams V, Dorsey EA, Szabo A, Visotcky A, Warren CC, Wirostko WJ, Weinberg DV, Kim JE, Han DP

Authors

Dennis P. Han MD Adjunct Professor in the Ophthalmology and Visual Sciences department at Medical College of Wisconsin
Judy E. Kim MD Professor in the Ophthalmology and Visual Sciences department at Medical College of Wisconsin
Aniko Szabo PhD Professor in the Institute for Health and Equity department at Medical College of Wisconsin
Clinton Warren MD Assistant Professor in the Ophthalmology and Visual Sciences department at Medical College of Wisconsin
David V. Weinberg MD Professor in the Ophthalmology and Visual Sciences department at Medical College of Wisconsin
William Wirostko MD Professor in the Ophthalmology and Visual Sciences department at Medical College of Wisconsin




jenkins-FCD Prod-482 91ad8a360b6da540234915ea01ff80e38bfdb40a