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. 2021 Feb 26;15:859–869. doi: 10.2147/OPTH.S304272

Table 3.

Visual Acuity Comparison Between Eye Chart Application and ETDRS Chart

Visual Acuity Measurement Total Eyes (n=295) OD (n=146) OS (n=149)
Eye Chart application
 •Median (IQR), logMAR 0.1 (0.0, 0.18) 0.1 (0.0, 0.2) 0.1 (0.0, 0.2)
ETDRS chart
 •Median (IQR), logMAR 0.1 (0.0, 0.18) 0.1 (0.0, 0.2) 0.1 (0.0, 0.2)
VA difference
 •Median (IQR), logMAR 0.0 (0.0, 0.0) 0.0 (0.0, 0.0) 0.0 (−0.1, 0.0)

Abbreviations: n, number; IQR, interquartile range; ETDRS, Early Treatment Diabetic Retinopathy Study; OD, oculus dexter (right eye); OS, oculus sinister (left eye); logMAR, logarithm of the minimum angle of resolution; VA, visual acuity.