Clinical validation of a novel smartphone application for measuring best corrected visual acuity
J. optom. (Internet)
; 16(3): 206-213, July - September 2023. ilus, tab, graf
Artigo
em Inglês
| IBECS
| ID: ibc-222229
Biblioteca responsável:
ES1.1
Localização: ES15.1 - BNCS
ABSTRACT
Purpose Personal mobile devices such as smartphones are proving their usefulness in ever more applications in tele-eyecare. An inconvenience and potential source of error in these past approaches stemmed from the requirement for the subjects to situate their devices at a distance. The present study aims to clinically validate best corrected visual acuity (BCVA) measures carried out by a novel smartphone application vision.app (VisionApp Solutions S.L.) using comparative statistics against clinical measurements. Materials and methods BCVA was measured in both eyes of 40 subjects using vision.app which displayed a black Landolt-C optotype with crowding on a white background, and utilized a 4 forced-choice procedure for the subjects to find (by means of swiping in either of four directions) the smallest optotype size they could resolve. Results were compared to BCVA measurements taken using a standard Snellen chart placed at 20 feet (6 m). Results The t-test revealed no significant differences between the app- and clinically-measured VA (p = 0.478 (OD) and 0.608 (OS)), with a mean difference between clinical and app measurements of less than one line of the eye chart (-0.009 logMAR (OD) and -0.005 logMAR (OS)). A limit of agreement for a 95% confidence interval of ± 0.08 logMAR for OD and OS was found. Conclusions The results show the potential use of a smartphone to measure BCVA at a handheld distance. The newly validated study results can hold major future advancements in tele-eyecare and provide eye care professionals with a reliable and accessible method to measure BCVA. (AU)
Texto completo:
Disponível
Coleções:
Bases de dados nacionais
/
Espanha
Base de dados:
IBECS
Assunto principal:
Acuidade Visual
/
Aplicativos Móveis
Limite:
Humanos
Idioma:
Inglês
Revista:
J. optom. (Internet)
Ano de publicação:
2023
Tipo de documento:
Artigo
Instituição/País de afiliação:
Capital Certainty/Spain
/
Creighton University School of Medicine/United States
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Universidad de Murcia/Spain
/
University of California Irvine School of Medicine/United States
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University of California Riverside School of Medicine/United States