binovfcal {binovisualfields}

Calculates an array of integrated visual fields

Description

binovfcal calculates an array of integrated visual fields given required parameters.

Usage

binovfcal(leftvf, rghtvf, lefttheta, righttheta, distplanes, pd = NULL,
  gender = NULL, m_xs = seq(-27, 27, length.out = 10), m_ys = seq(21,
  -21, -6), c_xs = seq(-57, 57, 6), db_cutoff = 25)

Arguments

leftvf

A matrix of left monocular visual field

rghtvf

A matrix of right monocular visual field

lefttheta

A number angle of convergence for the left eye in radian

righttheta

A number angle of convergence for the right eye in radian

distplanes

A vector of object distances in mm.

pd

Pupil distance in mm

gender

A string of either "male" or "female"

m_xs

Horizontal coordinates for monocular visual field for the 24-2 pattern

m_ys

Vertical coordinates for monocular visual field for the 24-2 pattern

c_xs

Horizontal coordinates for integrated visual field (from -57 to 57 degree with 6 degree spacing)

db_cutoff

cutoff value default to 25 dB above which the simulated threshold value is returned (NA otherwise) when there threshold value is present only for one eye

Value

An array of binocular visual fields for the distances specified by distplanes vector.

Warning

the value of either pd or gender has to be provided the unit of pd and fixdist must be the same, default to mm.

Examples

rghtvf <- matrix(c(
NA, NA, NA, 30, 30, 30, 30, NA, NA, NA,
NA, NA, 30, 30, 30, 30, 30, 30, NA, NA,
NA, 30, 30, 30, 30, 30, 30, 30, 30, NA,
30, 30, 30, 30, 30, 30, 30, 30, 30, NA,
30, 30, 30, 30, 30, 30, 30,  0, 30, NA,
NA, 30, 30, 30, 30, 30, 30, 30, 30, NA,
NA, NA, 30, 30, 30, 30, 30, 30, NA, NA,
NA, NA, NA, 30, 30, 30, 30, NA, NA, NA
), ncol=10, byrow=TRUE)
leftvf <- rghtvf[, 10:1]
binovfcal(leftvf, rghtvf, -.045, .045, c(1000, 1010), pd=62)