PURPOSE: To investigate the agreement between a mobile applet-based visual acuity (VA) self-test program and the conventional VA tests. METHODS: This consecutive case series study included 121 children and adults (242 eyes). Patients were classi ed into three groups according to age (children, adolescents, and adults). They underwent uncorrected distance visual acuity (UDVA) testing, distance visual acuity with frame spectacle (DVA with FS) testing at 2.5-m distance, uncorrected near visual acuity (UNVA) testing, and near visual acuity with frame spectacle (NVA with FS) testing at a 0.4-m distance using a mobile applet-based VA self-test program and conventional VA tests in two eyes.RESULTS: Correlations among UDVA, DVA with FS, UNVA, and NVA with FS between the two methods were signi cant in all subjects (all P<0.001). The intraclass correlation coe cient were 0.960. 0.845, 0.960, and 0.669, respectively (all P<0.001). The proportions of bias outside the 95% con dence interval limit of agreements were 6.20%, 4.82%, 7.08%, and 6.10%, respectively. There were signi cant differences in NVA with FS between the two methods (P<0.05) in the adolescent group, but no differences in measured parameters were found among children and adult groups.CONCLUSIONS: There is good agreement between the mobile applet-based VA self-test program and the conventional VA tests. The VA self-test has good practical value especially in the current pandemic, allowing self-screening of visual acuity, myopia control, and remote management of visual impairment in oculopathy.
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