PowerVertexPowerChangeApprox Method

Approximates the overall change in lens power per mm. Inputs are original lens power and change in vertex.

NOTE: This approximation only gives the CHANGE in power and not the final power to be ordered from the lab. You must determine if the value should be added or subtracted from the original lens power.

Namespace: OpticianMathLibrary
Assembly: OpticianMathLibrary (in OpticianMathLibrary.dll) Version: 1.0.0.0 (1.0.0.0)

Syntax

C++

ASP.NET

Copy

public static double VertexPowerChangeApprox(
	double originalPower,
	double vertexChangeMM
)

Public Shared Function VertexPowerChangeApprox ( 
	originalPower As Double,
	vertexChangeMM As Double
) As Double

public:
static double VertexPowerChangeApprox(
	double originalPower, 
	double vertexChangeMM
)

static member VertexPowerChangeApprox : 
        originalPower : float * 
        vertexChangeMM : float -> float

Parameters

originalPower: Type: SystemDouble
In diopters
vertexChangeMM: Type: SystemDouble
In millimeters

Return Value

Type: Double
Approximate change in power

Reference

Power Class

OpticianMathLibrary Namespace

PowerAddLanguageSpecificTextSet("LST36635A9E_0?cpp=::|nu=.");VertexPowerChangeApprox Method

Parameters

Return Value

Reference

PowerVertexPowerChangeApprox Method