Alcon AquaComfort Plus handleiding

Handleiding

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 Clockwise Rotation

When the scribe lines orient horizontally, the cylinder axis of the lens that is

dispensed or ordered should be the same as the spectacle refractive axis -

not the trial lens axis.

Spectacle refractive axis + Trial lens rotation = Axis to order

Example:

Spectacle Rx: -2.50 -0.75 x 150

Diagnostic Lens: -2.00 -0.75 x 160

Over-refraction: -0.50 sphere

Orientation: 10degreesclockwise(add)(150+10)

Final power to order: -2.50 -0.75 x 160

Counterclockwise Rotation

When the scribe lines rotate counterclockwise, subtract the degree of

rotation from the spectacle refractive axis - not the trial lens axis.

Spectacle refractive axis + Trial lens rotation = Axis to order

Example:

Spectacle Rx: -2.75 -0.75 x 180

Diagnostic Lens: -2.00 -0.75 x 180

Over-refraction: -0.75 sphere

Orientation: 10degreescounterclockwise(subtract(180-10)

Final power to order: -2.75-0.75x170(notavailablefor

FOCUS®DAILIES®Toric,thereforeeither

order180or160,orswitchtoDAILIES®

AquaComfortPlus®Toric)

• NOTE: Occasionally when a cylinder axis compensation is made for

orientation, the result may fall outside the traditional range of 0 to 180

degrees. In this case, the axis in accepted notation will be the difference

between the absolute value determined and 180 degrees.

Example 1:

Spectacle Rx cylinder: x 180

Orientation: 20degreesclockwise

Axis calculation: -0.75 sphere

(The200degreesisoutsidethetraditionalaxisrange)

Difference: 200 - 180 = 20

Axis to order: x 020

Example 2:

Spectacle Rx cylinder: x 010

Orientation: 10degreescounterclockwise

Axis calculation: 10 - 10 = 0

Difference: 180 - | 0 | = 180

Axis to order: x 180

• NOTE: Scribe marks on dispensed lenses must be at the same orientation

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