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. 2021 Apr 14;21:179. doi: 10.1186/s12886-021-01937-z

Table 4.

Distribution of the studied eyes according to binocular corrected distance visual acuity (n = 17)

Snellen Equivalent Decimal Corrected distance visual acuity
Feet 20/ Meter 6/ Far 6 m Intermediate 70 cm Near 40 cm
≥ 16 ≥4.7 ≥1.2 2 (11.8%) 2 (11.8%) 1 (5.9%)
≥ 20 ≥6.0 ≥1.0 7 (41.2%) 3 (17.6%) 3 (17.6%)
≥ 30 ≥9.0 ≥0.75 17 (100%) 14 (82.4%) 14 (82.4%)
≥ 40 ≥12.0 ≥0.5 17 (100%) 17 (100%) 17 (100%)
≥ 63 ≥18.9 ≥0.3 17 (100%) 17 (100%) 17 (100%)
Min. – Max. −0.08 – 0.10 −0.10 – 0.20 −0.10 – 0.20
GeoMean (LogMar) ± SD. 0.0 ± 0.05 0.0 ± 0.09 0.0 ± 0.08
Median 0.02 0.10 0.10