VAwrapper: VA conversion wrapper

Description Usage Arguments Value VA conversion See Also Examples

Description

Simple convenience wrapper around va to get desired VA class

Usage

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Arguments

x

vector of visual acuities

...

parameters passed to va

Value

vector with visual acuity of class as_(...) or to_(...) See also convertVA: "VA classes"

VA conversion

For details see va and convertVA

See Also

Other VA converter: plausibility_methods, snellen_steps, va_methods, va_mixed(), va(), which_va()

Examples

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x <- c(23, 56, 74, 58) ## ETDRS letters
to_logmar(x)
to_snellen(x)
to_snellen(x, type = "dec")

x <- c("NLP", "0.8", "34", "3/60", "2/200", "20/50", "  ", ".", "-", "NULL")
to_snellen(x, from = "snellendec")
to_snellen(x, from = "etdrs")
to_snellen(x, from = "logmar")

tjebo/eye documentation built on Jan. 24, 2022, 8:34 p.m.