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No, simply order by providing distance and the addition details. Software determines the appropriate power change to suit the focal length ordered.
Simply provide Distance PD and centre pupil height.
You don’t need to specify corridor length however you are able to specifically request a height.
The software will determine the optimum height to suit the overall prescription and frame combination.
This is a process to maximise personalisation of the Perfection lens designs to suit the patient. Position of wear measurements are required when ordering ‘Accuracy’.
The Accuracy calculation when applied will integrate a compensated prescription and will be supplied with a statement on verification of compensated prescription versus ordered prescription.
The Perfection range without the Accuracy calculation ordered, will be supplied ‘as prescription ordered’ and will read true when measured in a Vertometer.