TNOA Journal of Ophthalmic Science and Research (Jan 2023)
A comparative study on peek (Smartphone based) Visual acuity test and LogMAR visual acuity test
Abstract
Context: The use of smartphone-based peek acuity application to test the visual acuity will improve the time efficacy, availability, and utility of subjective results collections for the healthcare providers. Aims: To assess and compare the VA by Smartphone visual acuity chart and LogMAR visual acuity chart and to determine the significance of the peek acuity chart over the LogMAR chart. Settings and Design: Prospective study. Methods and Material: We analysed 50 subjects with their approval and informed consent, evaluated their visual acuity using a LogMAR chart at three metres, and performed subjective refraction, silt lamp examination, and fundus examination. VA measures were taken with a smartphone software called Peek acuity and subjective refraction was done with a smartphone-based visual acuity program. The results were then compared between the two techniques. Sample Size: Convenient sampling. Statistical Analysis Used: The data were entered in MS excel and the results were calculated using statistical software SPSS, version 20. The results were expressed in the form of descriptive statistics like mean, standard deviation, graphs, frequency, and percentage was performed and inferential statistics like corelation and paired t-test were performed wherever necessary to compare unaided visual acuity, visual acuity with pinhole, and with glasses in both the eyes using smartphone-based PEEK visual acuity app and LogMAR visual acuity chart. If P <.05, said to be statistically significant. Normality was checked using Kolmogorov-Smirnov test. Results: The visual acuity measurement using LogMAR and the peek acuity chart had a P value.0001 significant positive connection with correlative data with and without pinhole. In addition, when comparing the Peek acuity app and the LogMAR chart, it shows that the mean unaided visual acuity difference with pinhole in OD is 0.0200 and OS is 0.0100 and with full correction they read out all optotypes clearly and without lag or failure. Conclusion: We discovered a significant statistical association between visual acuity measurement using a standard logMAR chart and a smartphone-based visual acuity application in this study (peek acuity app). As a result, a smartphone visual acuity application can be used to assess vision instead of the logMAR chart.
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